There are certain things that I do like about Hickman's run. I do like that he seems to want to upgrade the Avengers to a new level. They're powerful, but if you were to compare them to say the Justice League; then they're not quite up to that level. On the other hand, I do feel that he doesn't really grasp the dialogue and characterization of some of the Avengers. While, I sometimes disliked some of Bendis' storylines or plots, I did think he had a great grasp on character dialogue whereas Hickman's comes off as a bit forced or heavy exposition handed and sometimes I find his plots to be a vague here and there. It's like, I read it but was left with me scratching my head afterwards.
Not to mention that he's simply added in a bunch of strangers like Hyperion, Smasher, Captain Universe and called them Avengers. That's it. I would have appreciated to see some build-up or something, not all of them have to have some sort of encounter or run-in with the Avengers, but it's like I flipped pages and suddenly they're members. We don't even see how they got recruited or voted in or anything.
Overall, I would have given him a 2 and a 1/2 out of 5; if they allowed 1/2 stars. I'll withhold final judgment until his run is over, hopefully when he wraps things up in a more understandable fashion.