Has his health been a big issue? I must admit, with his role as a AAAA player the last few years, I've sort of tuned out on him.
From what I've seen this year (which admittedly isn't much), he is pretty much like other years: poor fastball command and an assortment of good secondary pitches. I always felt that if he could get some strikes with his fastball, without getting tagged, he could be effective. Is just that he rarely did that.
Anyways, it's great to see what he has given the club this year. A lot of the callups have done tremendous work.