I have friends that went couchsurfing and had no problems.
They loved it!
There are, as far as I know, queer-oriented groups on that site - that might make finding hosts (or being one) easier
.
Couchsurfing is something that I want to throw myself into as soon as I get some free time.
I'll probably start by hosting (more probably guiding/meeting for a coffee, since I'm low on free beds) and meeting some people from the area.
There are good tips on how to be a good host/guest, and I think they'd be good in life in general, not just for couchsurfing.
Enjoy
, if/when you go for it!