The heating function works well to heat the water up to 115 degree F and then maintaining the temperature.
It has two rotating hydro-jets with two adjustable speeds and two rolling nodes to massage your arches.
Comes with a removable pumice stone to exfoliate the rough skin on foot pads and heels.
Higher price model
Brookstone describes its 72819 Heated Aqua-Jet Foot Spa as an oversized whirlpool foot spa with heating function and jet massagers. It might be a bit pricey for what you get, but the consumer ratings are consistently high.