I have it. I'm no fashioninsta though, just someone with very difficult hair!
I'm undecided. I bought it directly from Dyson, though it was slightly cheaper elsewhere, because they allow 35 day returns. At the moment I'm leaning slightly more towards returning it, but not sure yet. However, I have really frizzy hair, and not much seems to help. The Revlon One-Step, the GHD Duet blow-dry brush, and the Babyliss Big Hair all tended to make it very big and eventually frizzy/wild, over the past few years. However, I have a LOT of hair, it's curly/wavy, it's quite dry at the moment from menopause, it's not been trimmed in a while, so there are various reasons why it's more difficult than usual. And the Dyson was similar to the others in that it eventually made it pretty big and puffy, despite various attempts with products. On the up-side, though, it does feel less hot, and less damaging, and it's quite fast, and it looked quite nice for the first hour afterwards. And it didn't tangle or pull my hair at all, with the specially shaped bristles. And was quite light, and has a smaller plug than the airstraight. It didn't make my hair pin-straight, which I liked, and give me a little shape in the ends. It didn't give any sort of actual curl, though. (My hair is curly, until I straighten or blow-dry it or anything, at which point it doesn't seem to allow any curl to be put back in!). At the moment, I sort of prefer my Airstrait, which smooths it as much but doesn't make it puffy, at least not the first day, but the Airstrait just leaves me with ratty looking dry ends that just, well, end, with a blunt edge and no shape. I'd hoped this might solve my problem, and it sort of did, but just can't get over the puffiness and windblown look that creeps in within a couple of hours, despite various different products (Dream coat, GHD sleek talker, moroccanoil smoothing cream, other things to make curls stay, etc. - not all the same time, obviously, but in a few experiments!).
So I'm not sure. I have also tried the shark Silkipro, and in many ways, liked that - but the ceramic plate is probably what made the difference, which is going to be damaging, and also it constantly caught my hair on the plates, and felt like it was pulling it out. So that was a no-go. I continue to look for something I can use after the airstrait that will let me curl the ends and not drop out within minutes. I am considering the Shark glossi at some point.
If you have the sort of hair that the other hot brushes do work for, then you might well love this, as it's less damaging, feels good to use, and doesn't tangle. I really want it to work for me but just haven't managed it yet.