Detroit sends: 1st rounder (7), 3rd rounder (7), 5th rounder (7), 6th rounder (24), 8th rounder (24)
Toronto sends: 1st rounder (18), 2nd rounder (13), 4th rounder (12)
I think this is a pretty bad deal for Detroit. Yes, the 2nd rounder is nice, but that's mitigated by giving up a 3rd, 5th, 6th, and 8th, and only getting back a 4th to off-set that.
Plus, in my opinion the difference between 7th and 18th is pretty huge. It's the difference between a super-duper star, and a player on the fringe of stardom. I think this is a great, great deal for Toronto.