Planet Fitness is a great small gym to go to if you are looking for low cost and can get by without having every piece of workout equipment.
For $10 a month you have access to treadmills, ellipticals, bikes, free-weights and machines. There is also a small area for pushups, stretching or ball work. In my experience the staff (including the Manager Greg) has been friendly. The do seem to offer personalized training (not enough room for small classes) but I have never taken them up on it.
PROS
* Easy access
* No long wait for equipment
* Low cost
* Clean
* Promotes judgement free exercising
CONS
* No bench free-weight (you have to use one of their squat machines)
* No standing calf raise machine (they do have a sitting one)
* No scale in bathrooms
* Lunk alarm: A siren goes off if people start slamming weights. Slamming weights never bothered me but the siren does.
Overall great value if you are just looking to workout using basic machines and free wights and don't need a pool, bball court, yoga/spin classes, etc.