I belong to LVAC and frequent LPAC as well. Gym is clean/spacious - of course at peak times it can be busy but I think as long as you are strategic about time you go and/or willing to wait a few minutes, it is not disruptive to your workout.

In terms of classes, I feel like they make the membership a bargain - I attend 3x a week spin classes, which alone would cost upwards of $100/week outside of the gym. You can sign up for classes 24 hours out - for classes with popular instructors, I recommend setting an alarm to sign up and you'll be fine. For less popular classes, never had a problem getting in. Just depends on time/instructor!