I have the Intel DG965RY board, but I don't have it setup yet, as my CPU doesn't arrive until September.
I haven't really heard much about Intel boards in review sites, either. The only thing I have heard or read about is about the IGP on G965/Q965 boards, but that was from a pre-production model, and since then, zilch.
I am thinking that the P965s and G/Q965s should be just as good as Gigabyte, ASUS, or MSI boards, with the only concern being the 1.8v memory requirement that Intel has for it's boards. Again, I would love to tell you that any memory would work, but since my board is still in the box, I cannot honestly say that's so.