I visited Mountain Side Fitness on a recent trip to Phoenix & found it to be a solid 4 star gym. It was clean, well designed & had plenty of equipment. There are plenty of cardio machines, treadmills, ellipticals etc. all Precor. There are the usual selectorized machines & plenty of free weights. Saving the best for last, there is a functional training area which has battle ropes, a strip of turf & prowler along with rogue squat rigs, bumper plates, plyo boxes etc.
I would recommend this gym if your in the area.