The formats coexist without any trouble. Many of the girls who post here receive in their own apartment, by appointment and at a set hour; others work outcall and go to wherever you are staying, which is common when the visitor already has a room booked. If you are here for a few days and would rather not move, that option is the most practical and gets agreed when you write.
The first message settles almost everything. State which day, which slot and how much time you want, and ask whatever matters to you: duration, format, whether she does outcalls. The answers come from her, not from a third party. A short, respectful exchange is enough to close the details and saves back and forth once you have already left.
The hours are another strong point. Some are available early, aimed at anyone with a free morning, and others only start as the afternoon fades. That range lets you set up a meeting in any slot, even the same day, as long as you write with a little margin. What does not work is showing up unannounced: here too everything runs by appointment.
The range of services is wide. It runs from short, direct meetings to long dates with a couple-like mood; there are escorts focused on massages and others available as company for dinner. Each listing details what is included and what is not, and that information is what counts: better to read it in full and ask about specifics by message than to assume anything.