There are two girls here, so the details above are for Sylvia. Scheduling with them is very hit or miss. The first time I got through on my first try and scheduled the appointment with very little notice. The second time it took me about a week before I could get through. They use some sort of service, so you don't schedule directly with them but it didn't seem like an agency. When they're available, they usually answer the phone so if no one picks up they're probably booked for the night. They have an apartment in a high-rise in the loop. It's kind of weird since you wait outside and they come down to let you in. It's a pretty busy building, so lots of people are walking by. It feels very safe, albeit awkward to be standing around waiting for them. Performance-wise, they have a few rules, all of which are very reasonable. The girls are eager to please and seem to genuinely like what they do. I have and will continue to repeat.