I did the Marrakech premium private (hammam only) with me and my 2 friends and it was such a great experience. From the steam room, to the mask, to the scrub and shampoo - highly recommend.
Definitely bring a bikini to wear (one with strings) so it is easy to remove. If you’re comfortable, then just remove the bikini top for the whole experience as they will scrub everywhere and it just gets in the way really!
We felt so clean afterwards and they throughly scrub. Would come back again :-)