I might be biased because I workout at the Centennial Golds as well which is newer and a lot more updated but I'll review anyways.
+ Not overcrowded. There's machines readily available and lots of fans and air circulation.
- Classes are smaller. Where the other gym has full classes most of the time, the attendance for CX classes are small.
+ Lots of machines and free weights.
- Their machines are a little outdated and sometimes don't work with no sign.
- More muscle heads at this particular location. Twice I've gone within this year and there has been a photo shoot going on of oiled up muscular people at different machines.
+ Lots of muscular people to Ooo and Ahh at.
- Old TV's that usually don't work.
More minuses mean less stars.
I like the Centennial Golds because there are more amenities such as a cardio cinema and a pool but I mostly go to classes and the instructors at Lake Mead are the same and most of them are great!