On one hand, he's an incredibly talented prospect: a 6'10 220 forward with a 7'1 wingspan, an excellent outside shot (35% from three) and the ball-handling ability to get it off fairly easily.
On the other, he's already had one major knee injury and averaged only 10.5 points, 5 rebounds and 1.5 assists as a freshman at Baylor.
As a result, he has fans and detractors throughout NBA front offices, which NBA.com's Scott Howard-Cooper outlines in a recent column:
One general manager, noting Miller's noticeable improvement on the road back from the knee injury, said, "If he has his athleticism back, he's top 10." Other front offices, though, smacked the Baylor small forward with "Should have stayed in school," and not just in the way most prospects can use seasoning, a thought seconded by the GM who said, "Some of these kids get bad advice" about coming out. One veteran executive went so far as to say "I don't think he's a first-rounder."
For now, the latest mock drafts have Miller splitting the middle of the wide-range of opinion about him and going in the middle of the first.
And five years from now, that selection will look either way too low or way too high.