Another poster did a nice breakdown of his game in their own thread. Idk if you've read it yet, but it's great.
To your question, I think he's exactly what they expect him to be. The leader of the defense and a pass defending LB. When they ask him to play at the line or run blitz, he does just fine.
I don't get too much into the contract stuff, but I don't think they're doing him dirty by paying him 12 mil on the 5 year option. I think they're focus was getting Josh's deal done and working out Edmunds' deal after.