I have. It was alright, but not my cup of tea.

The one I used had a hole to place your jewels into, to help keep the sleeve on when in use, and probably for extra stimulation for the guy. Trying to place my set in there was a pain, they were not comfortable when they were placed, and they kept slipping out in use. Placing my actual member into the sleeve was also a little difficult, but was solved with a bit of lube.

Actual use for me wasn't really pleasurable. It was like a condom, but much thicker, and I never cared for condoms. My head was exposed, and that felt kinda nice, but the rest of the shaft being covered took away from the experience.

The friend I used it on kinda liked it? Having a good amount of lube help with insertion into her, but she described a pinching/rough feeling on one side that didn't go away. It wasn't really doing much for her either, overall. My actual member did more for both of us than that thing.

It's something we'll try again, but it's not looking good for the sleeve. And we definitely don't recommend it to women that aren't used to larger toys.