I belong to a PF and I have to say the worst thing about it is the number of members they have. If I try to go after work, you can't get near anything, never mind just the cardio stuff. There is people using every machine and bench in the place.
Luckily, my time of day that I normally go is about 8 am and that seems to something of a lull time. But I've still never gotten used to work out there. I'm getting close to changing again, but it is so convenient to my house, that I may have to just keep it and use it as a back up and join another gym to actually work out in.