After having watched the whole thing (at least, what's available) I found its action intense, its characters likable, its villains actually fearsome, etc. The fact that it pulled my adrenaline and horror and sense of dark mystery around so effortlessly made me enjoy the whole ride.
Are you kidding me!?
Fixed that for you
In all honesty, AOT isn't good, it's just generic as hell and is overhyped. You can see where the budget went, and it wasn't animation, just action. Everything else suffered (5 minute recaps, even DBZ didn't do that) when you only focus on action.
Plus the fanbase is just as bad as the homestuck and MLP fanbases.
Yeah the characters and the humanity facing extinction due to monsters might be generic. The story has a lot of surprises later though. A lot less predictable than more common manga/anime.