We have been members since Nov. 06. We got in on their intro price as they just opened their facility in Flower Mound. Our fees are 20/month per person and we pay an extra 10/month for our additional child (each member gets two kids and then there is a service fee of 10 for any additional kids). You just have to work with them a bit or see if they are running any specials. If you know someone who goes there already, you might be able to piggy back on their rate or let them know that your friends are getting lower rates. These seems to make them a little more flexible with their pricing.
Our Kids Klub is great and the kids really enjoy going. There is plenty to do, but my kids mainly play on the computers or watch TV. We have not had any issues with the KK other than other kids being brought when they are sick.
I also got a trainer at their intro rate and had been working with one for a year. Since bein there I have lost between 15-20 pounds and went down to sizes in my clothes.
I have not taken any classes but I have heard great things about the FM location and their classes/instructors, especially yoga and cycling.
Good luck!