I know this is a really odd question but I've been thinking about it for a while, and I think I've gotta go to one of these places. If any of you have any experience either attending or working at one of these places, I'd really appreciate your anecdotes.

If not in London, general South-East England is fine.

Even if you haven't been to one in England, I'd also like to hear of your experiences at similar places - I want to be prepared and know what to expect. I know of people who have had wonderful experiences at these places - and also many who have had quite the opposite.

Thanks in advance for all feedback :) I know this question is really quite niche, and different to what is usually on this sub.

^(PS: This is an alt-account. I lurk here on my main, but I've come to post on a throwaway.)