Mckinkz, most of these AMP open a bit later than the scheduled time. Even the owner is there, the girls may be late for 15 or 30 minutes. Every time you'd better call and confirm that the girl you wanted to see is there.
A tip for you, in the close by vicinity, there are girls coming back to the E&M to do some preparation before 11:00 am. You can call and walk-in to start your session earlier.