I've been a warmshowers host for a few years now, but haven't been called upon yet. I did make use of another warmshowers host on a short trip a couple years back. It worked out well - the host and his wife were great - even made me breakfast! I waited out a torrential thunderstorm in their livingroom the next morning. My wife and I were back that way a while later, and dropped off a nice bottle of wine to say thanks. Great experience.

If anyone is planning on touring through Exeter, Ontario - look us up on warmshowers - we'd be glad to have you!

Peace!
Brawny