lol, i bought this same brand after watching this review this weekend and was pleasantly surprised. the brush is pretty gentle on hair and i liken the results to a hot comb press without the hassle and the risk of burning. i researched some of the cheaper brushes and a lot come with gloves, so my guess is that the handle of the cheaper ones get pretty hot. i didn't have that problem of the handle getting hot with this brush.
it got my hair pretty straight, like a silky blowout. you could choose touch it up with a flat iron to bump, but i just flat twisted. I purchased the brush as an option for a quick and gentle way to stretch and detangle. i'm 4c with fine but dense strands. you don't need a lot of passes to get your straight either, maybe 2 or 3.
he's right, it leaves a great shine. it's also a great option for refreshing weave leave-outs or weave in general