Worth seeing. This is what big budget movies like this are supposed to be: fun.
Cate Blanchette steals every scene she's in--it's worth seeing just for her. The movie is self-aware and makes fun of the franchise. Also makes Thor less boring (let's face it he's one of the more boring Avengers.) Chris Hemsworth is legitimately funny and I don't think he had a chance to show it off in the previous movies. (also, it was recently brought to my attention that there is more than one Hemsworth. I thought they were all the same person and just dyed their hair sometimes. Mind blown. I do not read US Weekly unless I'm lying on a beach, which hasn't been for a year or more.)
I'm a little skeptical about what's over the horizon for Marvel. One of my issues with the Avengers, however fun it is, is that it's a hodge podge of people (or beings) with grossly different levels of power. So when they're fighting I'm not sure what meaning there is. Like if a dinosaur steps on Thor, and he's a god, does he actually get hurt? (Clearly he CAN get hurt.. but what exactly does it take if he's a god? Does Odin actually die, or is a more like an Elves leaving Middle Earth by sailboat kind of thing?)
Yet again had to sit through the trailer for Justice League. I'll show up just for Jason Momoa and Wonderwoman, but I'm super skeptical after the cringefest that was Batman V Superman. (Oh Henry Cavill, can someone please give you some good material??) They also showed the trailer for The Last Jedi, which I have never seen before. I guess Oscar season is rolling up, which means I will be hitting the independent theater a lot more.