I have to agree. I wish I could replace phpBB with BBPress, but it is just not ripe yet. smf, phpbb, vbulletin all have more layout options (e.g. BBPress looks nothing like a forum, and that is a big drawback because forums have been tweaked over years and years for what works). I just upgraded one site to phpBB 3.1.2 and tried converting a different one to BBPress.

I really like the integration with WordPress, but until it improves to be as feature rich as WordPress itself and phpBB, it makes it difficult to think that converting is a good idea.

Perhaps plugins will fill in the gaps, but the biggest gap is the look and while there have been a few attempts to revamp the BBPress look with a child theme, I have yet to see one that does it successfully. Let's hope 2015 is a big year for BBPress!