Really though, the only thing that disappointed me was his receiving ability. I was talking with a former pitcher while watching a game and he couldn't believe how bad he was receiving pitches, especially breaking balls. He stabs really bad on balls below his right knee, which is a big problem. You could tell he wasn't comfortable catching Chapman either, so I don't blame Chapman for those feelings.
For the record, I am a big fan of Mesoracos and I expect him to do well still, as soon as next year.