Good Place to Work Out in Denton or Flower Mound

I am looking for a good-great place to loose this baby weight.:} I have tried the YMCA in Flower Mound a couple times(free day pass)and they seem ok. I am going to check out Lifetime fitness in flower mound tomorrow. I would like something with good equipment, but also good for my kids. Anybody a member of either of these or a place in Denton? (ex: Brickhouse) I noticed LA Fitness is being built in Denton, any opinions on that place? I love the indoor pool options at LTF but have read some bad reviews for the company. Hubby like kids programs options at Y, but haven't experienced it yet, to know if its good or not.