I am due one as part of an overall gift I received but I'm considering giving it away or forgoing it because I'd imagine the whole experience would be rather quite awkward.
I imagine someone who doesn't have time to get to the shops or someone whose appearance matters a great deal for their work would use one but neither of those categories apply to me.
Appearance does matter in my workplace (just to look professional/decent) but I've long worked out that I look good in and only wear dark coloured cigarette trousers, a blouse and a blazer. Other than that, I wear skinny jeans and blouses for more social occasions so I don't expect meeting with a PS would really be enlightening.