I was a member of the Sports and Fitness Club in Ballantyne for two years. It was actually a Peak Fitness when I first became a member there. It's the only location that I have ever worked out at and the building is only a few years old.
For the most part they took pretty good care of the equipment and did their best to keep things working. I will say that this gym is very busy due to the low monthly pricing. Make sure you read any fine print because at those low prices they were charging a membership fee once a year of approx. $30 or so.
Since this gym is used so much it does kind of have that odor and feel of a 'dirty gym' at times but I did see them cleaning a lot. I'm not 100% sure that a lot of the people using the machines were cleaning after themselves. Shame on them! Another sign was the wear and soiled carpet going in and out of the restrooms. Again this is probably to be expected in a gym with high traffic.
It's not at all a bad place to workout, and for the price I guess you can't complain!