Tbh, this trade looks more meh now due how awesome the Bullock trade was. You have to consider Osman as a long-term member of the team for it to be even close.
Osman does have a really good locker room reputation. First player to arrive at practice, kind to everyone, befriends the janitors type guy
When I took a closer look at his stats, what stood out is he's more of a volume three-point shooter than I thought. He's not quite at Graham's level but he shoots threes more of often than McDermott, Vassell and Keldon. A nice guy who just turned 28 who shoots a lot of threes? Sounds like a pretty good player to keep around Wemby for the next four or five years, tbh.