The chair turned up with no instructions, and a piece missing. The chair is comfortable enough to sit in, although the massage function is really just vibration built into parts of the chair. The control pad for the chair is a little confusing with no scale for the intensity setting so its impossible to tell what level it is set on, and the intensity didn't seem to change all that much anyway. The heating function didn't seem to work at all, I couldn't detect any real change in the temperature of any part of the chair. Overall, not a bad purchase, although I subsequently found another site selling the same chair for $80 cheaper.