Also been to HDC many time.
It’s well equipped with everything you could ask for… at least I’ve never been left wondering why they don’t have x or y. I haven’t been for maybe 2 years now. Last time I went to book some time, I was informed the fucking machine was… fucked. As it was a major participant in my plans for the good lady, I didn’t go ahead, but I suspect it’s been replaced by now.
They have cotton rope. Just an FYI as I prefer to tie with something that has more bite like hemp or jute.
They also have a suspension frame but, as the room is a little small height wise, it’s not the beat setup. It works though.
The people running it are very friendly. They have a shower too, of course.
There’s another place in Tonypandy. It’s basically some guys basement - he’s a photographer and has converted it into a dungeon. Not quite as well equipped as HDC, but there’s a lovely wet room shower. Maybe better for shooting, I guess. He has a website I can dig out if you’re interested.