Diamond 5870.. Any good?

Well right now the cards are still reference.
So, theoretically, all the cards are the same. (Asus, HIS, Sapphire, etc)
Diamond has decent customer service.
Not too sure about their warranty.

Diamond is ok I got one from frys a while back to crossfire with my other 4870 (visiontek)

But after testing both the card in crysis cod4 and WAW i didnt see any noticble gain in performance..
and the Diamond didnt see to be on par with the Visiontek. as far as framerates went or just the smoothness..

not sure if it was just that card or that line of cards..

I ordered one from TigerDirect (should be coming in the mail tomorrow) and I'm wondering how it is as well. I'm sure it's a fine card but I'm thinking about selling me and opting for an XFX one because of the lifetime warranty. Hmmm....