This Review Title is the unit itself is good. It heats and works well and the content is: So to start, the unit itself is good. It heats and works well. The stones on the other hand are crap. They heat up quick, and quick to cool and get way too hot without retaining any heat.. Not for Professional. They are like garden stones you can find anywhere. Wish it would give you nice stones for the price :( Going to have to buy a set of basalt stones that will fit this, so that I can have a professional set for hot stone massage..There are other information for this review, one is This reviewer did purchase it and the other is 2 people think this review is helpful.