Not so great
Unfortunately, the other reviews show what is wrong with the Amazon rating system. I knew some were a little too positive, but a few seemed pragmatic. In short, I would not buy this again. For the money, it doesn't deliver and it does not do what I wanted. To begin, I live in America. It only displays temperature in Celsius. Not a big deal, but not optimal. I filled it with room temperature tap water and turned on the heater (with the lid on) to get it to its max temperature of 48 celsius (about 118 F).  It heated for some time and got the water to 32 and then shut itself off. I turned it back on to keep heating. I finally got tired of waiting and got started. It finally got to 44-45 degrees after the better part of an hour. That ended up being hot enough for me. The bubbler is pretty minimal, but it does work and does move the water around. Nothing like in your spa/jacuzzi. The round massagers really pushed my feel around, so I added a few bath salts for lubrication. That worked better, but it still takes some effort to keep your feet on those massagers. The next problem is that the two rollers that are perpendicular to your foot are too low to reach/massage your arch. Unless you have flat feet, these do not work. They are either level with or slightly below the round heel/ball massagers. It is physically impossible to massage normal arches with those. On to the pumice wheel. I have calluses on my heels and between a few toes. I have dead skin on my arches and balls of my feet. The placement of the pumice wheel makes it impossible to smooth the lower outside of your heel. I have a 9.5/43 mans foot, so pretty average. Likewise since there is only one pumice wheel, in the center of the device, about the only part of your foot that can reach it is your arches. I went back and forth, round and round for more than 10 minutes on each foot, I could not see that it removed any dead skin. I worked my heel calluses as best I could (think Houdini) but could not tell it did anything. Everything did function and despite being very light, the motors had enough torque to keep things spinning even with a little pressure. I didn't get out my microscope to see if the red light made a difference, but it did come on. Bottom line, for me, it was not that soothing and you couldn't just relax and let your feet soak because the round massagers push your feet off. I will use hot water next time rather than let it heat and that is OK. What I don't like is that I didn't use the timer and it shut itself off twice while I was using it. I am not returning it but doubt it is much better than the $30-40 devices. I could achieve the same thing with a bucket of warm water and my shiatsu massager on the bottom of the bucket. I am going to keep using it, so if it changes over time, I will update the review.
Rating: 3 stars