One major complaint of mine so far is that your health does not regenerate at the start of each level, making this fight I'm at a bit tougher than it otherwise would be.
Also, and watch this, I can play fair and acknowledge some of the dumb shit I've said-- the framerate could have been better. This is an open invitation for Amir0x to lash out a shit-ton of told you so's, but yeah, it could've been better.
It's not hurting my enjoyment of the game at all, it doesn't get in the way of gameplay to me and the game is otherwise beautiful, but I can see how some would have problems with it and I'll fess up to that, absolutely.
Other than that I don't really have any problems with it and its by far the best 3D Castlevania, not just vastly superior to the other 3D titles but a great action game regardless.