I hear what Larry's saying and agree with some of it. That said, I do like much of Bud Plays Bird. His playing isn't perfect - there are some flubs and a few lapses in his timing - but I'll go back to listen to his playing on the first (October '57) session again. "Confirmation", "Ko Ko", and "Buzzy" stand out for me.
When I listen to Bud, I feel that I have a sense of how he was feeling when he recorded, more than I do with almost any other pianist. I always have the sense that he was laying his feelings out there for us to hear and didn't hold back. On the October session, he sounds in a relaxed good mood and, for me anyway, that comes through in his playing, even on the uptempo tunes.
So even though Bud Plays Bird is far from being my favorite Bud, even my favorite late Bud, there's enough there that I want to hear now and will want to hear in the future.