Rock gyms

[lilfluff]

I believe at least a few people I know have done some climbing at indoor rock gyms. I hadn't really thought about it much until an email at work mentioning a local rock gym in Tempe. It seems like it could be fun (even if they do insist on signing scary waiver forms, 'I understand rock climbing is like slipping a noose around my neck and won't sue if I die' seems to more of less be the translation of the waiver text), and a more interesting than just doing yet more crunches and push ups et al.

Anyone have some personal experience with it? Anything I ought to know?