Review (4/5): It kept him from shaving it off.
My husband is a man of few words, so when I asked him what he thought of it and he said, "Yeah, works. I use it," I knew it was a pretty good product. He was going to shave it off and I begged him to wait and let me get him something to try to make it better, and he apparently likes the results because he still has the beard and the straightener brush.
It's small as a hairbrush. It's not a blow dryer type- no "blow," just a heated brush to tame unruly hair. Unless it stops working (in which case I'll come back and amend this review) I'll give it a solid 4 stars, which is good. I don't give 5 unless it's really exceptional, so take that for what its worth.