There are two fitness rooms at the Villas. Both have a few treadmills, bikes, and elipticals. Each has a selection of free weights / benches, and some weight machines (6-7 basic ones in each). The aerobic machines all have TVs (a la Westin workout). Definitely middle of the road or above.

Each facility isn't huge, but they are usually not busy. There is no view.

The Westin is definitely larger with a view (of the pool), but the Villas is adequate IMO.

Suggest you go for a walk / run from Villas - Hyatt (5 miles r/t). It's way nicer than being inside. Go early to avoid the crowds and heat.

Enjoy.