Recently cancelled my membership here and signed up at GoodLife for $15/month less. Sometimes I do miss it but ultimately I felt it was too expensive relative to some of the issues I was having.
Pros of System Fitness:
-good selection of classes, although they vary in terms of effectiveness
-Kettlebell is amazing! Highly recommend. If there was one thing to bring me back here, this would be it. Yoga is also quite good. I didn't find Pilates or the cardio aerobics to be all that effective
-corporate rates are good, can go as low as $25/month
-good selection of machines, free weights and other equipment
-the manager is great, always around to help
Cons:
-expensive on a non-corporate plan. I paid $55/month
-the place smells like BO and condensation...there are some ventilation issues that never seem to get addressed
-limited/non-existent A/C in the summer, I had to stop going in summer because I feel like I am going to pass out. When it costs $55/month this seems insane to not be able to go 3months out of the year
-no changing stalls in change room