Well Ari, it has to be said, that in general I feel that 3.5 seems to be suffering from a rules/supplement bloat the like of which I've never seen before (including 2e).
I'll probably get the title, because I'm a DnD addict, but I can't possibly say I'm in the least bit excited. In fact, in the longer term, this is probably going to kill the hobby for me. Its hard to get excited about yet another "Complete" when I still have so much unread (nevermind unused) material from a huge pile of other books. IMO, WotC really needs to sit down and think a lot harder about producing fewer, high quality products.
My current frustrations are the immense page count used to describe each PrC, the "meh" factor in a lot of the recent feats (CPsi, & PHB2), and spells I can no longer even be bothered to read through. My time is limited, and I find PrC fluff excessive to the extreme.
This isn't to say that the Complete book you are working on isn't fantastic, incredible, must-have tome of RPG-ing happiness. I'm just expressing my concerns.