Personaly I like the movie, it was what I spected but I understand those who wanted to see more cameos.
I thought it was good, but a bit too fast-paced for my liking.
It started promising, as I was like, 'Heck yeah, Dormammu!' and was heavily confused when Scarlet Witch was the villian. For almost the rest of the movie I was convinced/hoping that Scarlet Witch was just a trick villian, since it seemed that she moved too fast for her to be the main villian. I accepted the truth when Evil Dr. Strange got killed in no time flat. Meh.