Appears adequate
Would have given 5 stars except for the fact that the massage attachment came with one of the balls missing, so it is useless.  I have used this for face cleaning with the brush and soap and water and it seems to work well. I use it on the high speed and it appears to have enough strength that I can apply pressure for a good cleaning without it stopping. If it lasts, I would consider this a good buy.
Rating: 4 stars