Out of curiousity...what issues were you having with Crossfire?
Lack of profile support was the issue, the majority of games I was waiting far too long after release (sometimes after I'd completed the game) before proper profiles/support were implemented. Limping along with a manual profile and the associated flickering/perf issues wasn't exactly a great experience and rendered my setup largely useless.
From other people I know who are still running crossfire this hasn't improved. In fact all of them are a bit tired of it and unlikely to stay with AMD when upgrading. I have no problem going back but it will only be in single card format until I'm confident they are willing to pull their finger out for multi-gpu support. I will say Nvidia are on the ball when it comes to this as they usually release a game-ready driver for all new AAA titles. It's by no means perfect but has been a much better experience.