V., I belonged to Curves for a short time, and I didn't care for it. In my opinion it's best for people who are obese or elderly. I didn't find the workout to be "enough". The other issue is no child care.
The gym I currently belong to is Lifetime Fitness. They have an amazing childcare facility and you can swim with your kids or climb the rock wall with them not to mention there are a bunch of classes kids can take (those are extra). Kids can be in the childcare for 2 hours per day. If you have a day where you want to workout and go sit in the sauna or jacuzzi you can....it's a nice little break.
I find that if you commit to taking 3 or 4 of their fitness classes per week, you can get into good shape. Also...the locker room is amazing. There is a steam room. There is a jacuzzi and a dry sauna too. I love that gym. J. Romo