I've enjoyed pretty much every 2D title he has worked on to date...some more than others, of course. But I've never walked away from any of his 2D works feeling like I wasted my time. His 3DVanias, on the other hand, just weren't on par with other titles of the genre at that time. They both had lots of great CV ingredients in the mix (music, art design, interesting combat systems, plenty of classic monsters), but the overall 3D recipes were sub-par. Action wasn't dynamic enough, level design was poor, and the plots were either uninspired (CoD) or poorly presented (LoI).
In short, I don't mind him making 2D titles (though he does need to up his production values)....but I have no desire to see him helming a new 3DVania ever again.