He kind of reminds me of Travon Walker... similar freaky size and athleticism, same read-and-react role in Georgia's system, same low stat production in that system.
Walker's ended up being a good pro. He'll always be compared to Aidan Hutchinson, and he'll never be that good. But if he was drafted in say the #5-10 zone, no one would have a problem with him.
Williams is a notch below him as a prospect, because every defensive end on the planet is a notch below Walker athletically, but I think he's a comparable type of player.
I wouldn't hate drafting Williams at #12. I think there's going to be a lot of similarly graded players there, and Williams definitely plays a money position. Green and Pearce would be my preferences at DE, cause I think they're better pure pass rushers, but it looks like Green's character issues are more than just smoke.