I've done it a couple of times, I've had more misses than hits.
Depending on where you live, I live in a Co-Op, if you can get them to come at a time with little to no traffic in the hallways.
Depending where your apartment is, you may be able to scope them out when they arrive. I have a direct window to the building across the street from me, so I give them that address and check them out from across the way.
Prepare for a mess. I've had a girl spit on my hard wood floors in the middle of giving me a BBBJ. Another girl threw the condoms in the toilet and didn't flush it down. Another one, opened an old bottle of champagne from I don't even know what New Years I bought it for, without asking me. I also had a couple of girls leave their juices on my bed sheets. I have to say, it could be worse, but those don't seem that bad.
I will say, I did find some gems Had a girl who did outcalls on the side, she was a stripper. Her body was amazing, I got her during the day, and when she walked through the main lobby with me, everybody was staring at her, mind you she was wearing regular jeans and a T-shirt. But that was back when Cityguide and B page were still up and running. The girls I've gotten for outcall in the past couple of years were lame or mediocre at best.