Yes, phpbb is great. I made a whole website off of it. Unfortunetly I had a HD crash a while ago.
I didn't have many members. The website was cool, I wasn't. That's just the way it goes. :P But, yes. *clears throat* PHPBB is good. Setup is a little complicated and if you screw it up you have to go into your MySQL database and fix it. :P
~ Grayback Wolf
Try typing with paws. It gets frustrating sometimes. :P
I have been using phpBB3 for as long as it has been out. Before I did not like phpBB2 however this new version is awesome. It brings it right up to par with the other systems. I like it better than some of the paid scripts because of its large base community.
Demo: free forum hosting