Functionally fine.  NOT comfortable to use in "real life".  Poor design.
This product functionally fine.  It operates well and feels great on the feet.  The heat function is useful to maintain water temp when using warm water.  The part of this product I don't like is that there is no real comfortable place to rest your feet!  It is very uncomfortable to use.  The rollers are never really in the right spot, and you have to keep moving your feet around to get them comfortable.  If 1 roller is in the right spot, the other one is in an uncomfortable place.  Possibly just 1 roller would be better?  The main complaint I have however is the inside rim at the top of the basin.  It is a sharp-ish edge.  If your ankles come into contact with it at all, they dig in.  So, the ONLY comfortable way to use it is to avoid having your ankles contact the edges.  Your feet / calves have to be DIRECTLY perpendicular with the tub in every direction for your ankles not to get pushed on by that edge.  VERY poor design, and not at all comfortable... Isn't comfort the very thing you would buy this for?  ugh!  Kind of useless.
Rating: 2 stars