Great questions here. I'll do my best to answer them. You'll see a lot of my answers will point you towards casas. Not that I care, but the logic will lead you that way given what you've told us so far. Neil could tell this right away because most of us are looking for similar things.
tl;dr check out casas like
Ellas Erotic, Angeles, Chicas Plus, Eclipse, and maybe Santorini House during the day and leave it at that. It is not really about the house, but rather the girl. Read reviews here and then ask us in this thread. Loutron in the day and La Isla/Fase2 are great too, but no reviews here really.
The best thing to do, whether it is a casa, spa, or individual girl, just put the link below and we can give you feedback if you are having trouble doing a search or are just suspicious.
You can always ping us here if you have future questions along the way.
YOU CAN STOP HERE.
-------
However, since I'll be working on an upcoming newbie guide so this is a good excuse to get some of this written down I tend to be long winded but it is for a reason this time

.
IF ANY NEWBIE TO MEDELLIN HAS ANY FEEDBACK ON WHAT THEY WOULD LIKE TO SEE, LET ME KNOW. This will mostly be for somewhat experienced people who just haven't been to this city yet. Experienced guys can chime in too. Is there any resource you'd like to have that would make things easier? A map? A glossary of local terms (as they vary)? Etc. Working on this already but I want to make sure I create stuff that is needed/wanted.
-------
Many thanks for your valuable advice. I have some follow up for you and others, always appreciatie of your advice and time....
- I have read references made tourists/mongers getting drugged with scopolamine (also called Devil's Breath?). Is this administered in a drink of an unsuspecting target or are there other ways as administering this or other type of drugs?
tl;dr for this section: just watch your drinks. and stick to your own plan
People say there are other ways but the sources are not reputable. Usually clout chasing online. One guy put a video out recently that had no proof, no details etc. Also, his story seemed like BS given his timeline and how uppity he seemed just a few hours later. Total crap. I've spoken with MDs who've confirmed that just getting it blown in your face is probably not concentrated enough. And also, food and drink is 100x easier anyway.
So, even if other ways are possible, drinks are the most common way by far. For medical uses (nausea/motion sickness prevention) they use a skin patch which is not practical in dosage OR method for the street.
What people don't realize is that in the overwhelming majority of cases, scopolamine is not necessary. Many girls can simply use benzos. I've heard that usually it is a mix of these in Colombian cases. Benzos are super easy to get for them. Also, the benzos is what usually kills a person. In short: watch your drink. Or don't drink around them. That is what I do. Too many guys want to bring girls back and be cool party boy with two women. BTW, never do that either. I know that Neil already talked about Trios in his answer, too. Want a threesome? Go to a casa (more on that below). Want to drink with a girl? Go to La Isla or Fase 2. Just don't drink too much anyway of course.
The only really scary story I heard is that a guy met a girl who suggested a place to meet up. Good place in a safe area. Turns out she knew a bartender there. He spiked the drink. Probably not much any of us could do in that situation, EXCEPT avoidance. The general rule is that do what Neil advised earlier:
If anything feels like it's going outside of your initial plan, walk.
^^^This. The golden rule would have prevented the above situation.
Example: If I wanted a regular date, I would pick the place. Not her. I would say get there early but don't worry, she will be late lol. When she arrived, I would say that I went inside and didn't like it, then I'd walk with her next door. I'd watch her reaction. Regular girls wouldn't flinch. But I can't honestly say I'd do that because I prefer traditional hookers. Not these new hookers who don't like to think they are hookers, and lie a lot. Sorry, not sorry.
Separately, I think the guy above may have met the girl on Tinder. Which bring up a point you didn't ask:
Treat Tinder/Apps like you treat street walkers. With a lot of skepticism. Or just avoid outright.
- How much do these hourly motels cost? Are they scattered through Medellin or congregated in particular areas? Where can I find a listing of these hourly motels? I definitely would not want to go to a motel that one of the girls would suggest so I want to arm myself with knowledge of them, locations, cost, etc.
They are scattered. These first two hotels are truly love hotels. If you take her there, she will KNOW that you don't have shit there. That is in line with Neil's advice
1 - Ibiza (which Neil mentioned) has two locations. You can google "Ibiza Medellin" and see them on a map. Their prices are listed on their site.
https://motelibiza.com/ (you have to pick a location first)
2 - Las Cabañas also lists prices on their home page
http://lascabanasmotel.com/
--
3 - These are sites for hotels that allow hourly rental.
https://www.byhours.com/ -
https://www.hotelsbyday.com/
I've heard that Lleras Green was offering hourly a few years ago on their own site. It looks like now they are offering 3/6/24 hour rooms on this other site.
https://www.byhours.com/en/lleras-green-hotel-27158.html &
https://www.hotelsbyday.com/en/hotels/colombia/medellin-1/lleras-green-hotel seems to offer only 6 hour stays on this site.
All of those above should give you an idea of the ranges.
- I have read reviews here where the service provider is visited at her place and paid upon entering and before services are provided. Is this a fairly safe and standard approach to both visit at her place and pay upon entering?
I've done this every time, though again, we are using well reviewed girls. You can do both of those with a well-reviewed girl. One difference between having her come to your place (domocilio) vs. going to hers, is that in most of the world from what I've seen, and outcall/domocilio is usally 20-25% more. In Colombia it can be 2-3x more. I don't know why. Perhaps traffic, lost time, or just maybe that is how is started and the biz model persists. Some women won't even do them at all as they keep tight schedules, etc.
Are these particular providers the ones that list themselves on sites like Pasion Prepagos? What particular term(s) is used by providers that have their own place to visit for service? BTW, I don't know Spanish beyond a few choice words.
On PasionPrepagos, "Con Lugar" means she has a place. "Hoteles" is that she visits hotels. "(A) Domocilio" is that she will go to your place generally, not just hotels but your AirBnB, apartment, etc.
If you only know a few words, I'd pay up for outcall/domocilio, or just go to a casa. Going to a private house, unless the chick has a TON of positive reviews is hard mode. Start easy.
Also, if she has a ton of great reviews, is hot, has a decent price, she is going to be VERY busy. Also she will have a bunch of regulars and those relationships pay dividends. No reason to put them off for a one-time out of towner. So they are not necesssarily worth trying to schedule on a short trip. I learned that the hard way on my first time there. It took almost 3 days to get a very in demand girl. Worth it? Yeah sure, but I would have planned better if I could do it over again. There are plenty of great girls at casas. And if something happens, there are 10 more there too.