I just had one of the greatest QM games in terms of cooperation and teamwork. It was literally a thing of beauty.
Our team: Varian, Lunara, Arthas (me), Illidan and Sondius
Them: Azmodan, Murky, Muradin, Gul'dan and Rag
Our comp was toxic as fuck with all the slows and rooting going on. Our Illidan was great, zero deaths, never overcommitted. Actually hung back a ton to use Hunt on low people, was a sight to see.
Their Azmo was named Umadibet (run into him often), silenced as well. We were playing on Tomb and he would feed to get our wells down with the E build and within the first 5 minutes he had them all down. I think the E talent that increases his range and speed needs a little nerf. You can't escape most of the time.
Also, I really do think Arthas is going to get nerfed. While I think his damage is okay, he contributes way too much survivability once he hits 10 and utility with the slows/roots.