Kid has good stuff. Better than most every other Yankee pitching prospect since Claussen & Pettite. His fast ball touches 97 at times. As a Yankee fan, I can tell you that we have been hearing/reading about him for several years now.
As with most rookie pitchers not named Felix (soon to be), I would wait until you see what you get this weekend. Let's put it this way, he will certainly do no worse than Wright and Brown. IF the kid pitches well, you will probably see a lot of him over the next several months. With the Yankee offense, he may not be a bad darkhorse.