i use planet fitness too. it's cheap and really it's the most convenient gym for me to use based on location. the cardio works, but the weights are so limited. i only use dumbbells because i'm not a big smith machine fan, and the dumbbells only go up to 75. not that i'm throwing weight around, but i'd like to push myself more than that. i'm just too lazy to make the move to golds gym, which is 5 more minutes away. that 10 bucks a months makes it too easy.