As a human being, I've not heard many good things about Urban Meyer. However, as a football coach, one thing I like about his teams is his players rarely run out of bounds to avoid hits. Watch tOSU, watch old Florida film: his players will cut back in and will fight for every last inch. That is good coaching.
The off the field stuff, the discipline problems. That is a leadership issue. Most of the time, coaching and leadership go hand-in-hand, but not always. Some good coaches are poor leaders (see Mangino, Leach, Roy Williams, Pete Carroll, etc.) I'd put Urban Meyer in that class. Would I want him at UT? It's tough. I'd want the wins; but, it seems that eventually, the lack of discipline catches up to the programs.