Power Train is great, but it's important to understand what they are so that you can determine if they are right for you. Power Train is not a gym. You don't get a membership and then come in whenever you want to use equipment. You reserve a spot in a class (30-minutes or 60-minutes) and come in to do cardio conditioning and strength training with a trainer (or multiple trainers when the classes are larger). You wear a heart monitor and all of your age/height/weight information is programmed so that you can monitor you heart and calories burned throughout your session. The workouts are pretty intense, but the trainers are encouraging and supportive. So far, Power Train is working for me and I would recommend it to anyone who is serious about losing weight, gaining muscle, and just looking to improve their overall health. $40 for a Groupon is a great way to sample the program and see if you would want to continue further. Even if you don't, you will be on the right track for maintaining a healthy lifestyle.