> 1.  Has anyone used Bugzilla for external (client) bug tracking?  Or just
> Bugzilla in general?  If so, how well does it work for you, and do you have
> any problems with it?
 
I work for OTI (IBM) on the Eclipse project. When the project went open 
source, we switched to Bugzilla (from an internal tool) and we've loved it. 
We haven't had any problems.

- Jared