Review (2/5): Great, but with an unpleasant catch
Great product out of the gate. The two bristle strengths are well-specified to vigorously or gently scrub, as the situation requires.
Sadly, after one month, I've noticed that the wood handle has allowed fairly rapid growth of a mold when hung in the shower. No amount of drying between showers seems to stop the spread of the mold. This would be fully solved were the handle made from plastic, or if the wood were coated more effectively with a sealant of some kind.
I've come to appreciate the usefulness of a tool like this. I will be replacing it soon, and will have to find an alternative to this particular product.