It's tough to say, I admitttedly haven't seen him pitch, but his stat lines have been pretty impressive. Ok he's given up a few walk but he hasn't given up too many hits. His minor league stats are pretty impressive, which quite often are a good indicator of how pitchers might do. I wouldn't worry too much about the low Ks, perhaps he is working on location and control rather than going for all out power.
I'm curious what others think too.