His GB/FB ratio of 1.39 this year is hardly elite. Even tonight he's just 7:5 on groundouts to flyouts. He's basically a 4.00ish ERA guy according to his peripherals this year... I wouldn't call that "good." Major league caliber, sure, keeping in mind that it's a small sample size. Worth a second look, fine.
He's not consistent but I saw some glimmers of very good sink.