The meeting is usually settled at her place, but going out is common too precisely because of the neighborhood's size: the trip to the surrounding areas takes a few minutes and many accept it without fuss. If you'd rather use a hotel, the conversation is the same: where you're going and at what time is agreed beforehand.
The contact route holds no mystery: you open the profile, look at the photos, hours and services listed, and write on WhatsApp straight to whoever placed the ad. There are no middlemen in between. The clearer you are about the day, the duration and the format, the fewer messages it takes to settle everything. It's a short exchange and it gets to the point.
As for what's on offer, there's a bit of everything the city advertises: short sessions, longer meetings, massage and also closer treatment, the kind usually described as GFE. Some ads include companionship for a night out. Reading that part carefully is what stops you asking later for something outside what was agreed.
Since there's no through traffic, a car that pulls up, stops and then leaves rouses no curiosity; someone walking in circles looking for a door, on the other hand, does get noticed. That's why it pays to have the exact spot sorted before setting off and to make the trip in one go, without circling the surrounding blocks first.