Dee-Jay has good buttons? His zoning is mediocre because his AA normals are really prone to trading (this is why he loses to Honda and 'Gief). His cr. jab is good and his cr.mk is good but not much else stands out. St.mp is decent but very space-dependent, st.fp can be used as an AA but it will trade if you're even slightly late.
People just don't know the matchups to realize that Dee-Jay is very mediocre. Years later and I STILL see people trying to cross-up Dee-Jay when they could just meaty low or safe-jump for free. I love the character but he is far from what he used to be in ST. I wish Capcom would either make him a good zoner or a good rushdown character, not a jack-of-all-trades like they seem to want him to be.
He'll be better in ultra but its not going to matter if all his bad matchups also get buffed. The introduction of DWU alone is going to hurt his cross-up game.