If you watch some of his action (YouTube, other) he's got a fairly high effort, deceptive, cross fire delivery from three quarters... It's the kind of delivery that portends shoulder issues.. He's been doing it the same way forever, so, the injury thing could be absolutely wrong.. but, that's what happens to a lot of pitchers that throw like him..
Is he good??.. he's competitive as hell.. probably a response from people me that say.. he's got this funky cross fire delivery that won't hold up..
His projection is late first round to comp rounds.. I'd pass on him until fourth or fifth round, at the earliest... then pick someone else..
sorry for the "shit" opinion...