Review (4/5): Almost perfect...
I bought this last month to enable me to scrub my entire back despite chronic shoulder pain. It is a perfect length and the bristles seem to be in the Goldilocks zone of not too stiff / not too soft. The grip is very well shaped for good control etc.
The only reason I don't give it 5 stars is the handle texture. The entire handle is a smooth high gloss finish that looks great and the brush and the grip shape makes it easy to control the brush... when dry. As soon as my hands were wet & soapy I found it to be very slippery & hard to hang on to. I found that slightly roughing up the surface in the grip zone of the handle with a little sandpaper fixed that problem and I now find it to be perfect for me. So the only improvement that I might recommend would be to add surface texturing to the grip area of the handle so it would be perfect right out of the box.