I have been to many PFs, and I've liked them all (except one). It's a good chain -- it's always clean, has what I need, great machines, not crowded when I go, but not dead either.
Here's one thing you should do though: the knurled metal grip area on the popular dumbbells gets worn down over time and as it does it tends to get slippery and slimy. At this point they need to be replaced. At a minimum, find some product that cleans them, and do it.
Other than that, excellent gym all around.
I went in with a billing problem and the manager stepped up and fixed the issue right away and gave me some helpful information. He was very friendly and easy to work with. Much appreciated!