From the half a dozen games I've watched, I think his shot could use some tightening up (both FTs and 3s), but the form is terrific. Even better, he already has a complete offensive arsenal. Floaters, mid-range pull-up, finishing around the rim - you name it, and he can do it.
And contrary to some early reports, he's absolutely a point guard. He does a really good job running the offense both in the halfcourt and on the break, and as we saw from that half-court alley-oop, he has the ability to do the spectacular. Like any young guard, he still makes a few lazy passes from time to time, but I expect that to get cleaned up fairly quickly.
I generally don't care about players rankings, but there's just no way he's not a top 10-15 guy in his class.