The plot felt a bit sparse, however I did think that it was really cool that the humans were basically helpless in this movie. Nothing they did mattered much, or even made things worse. When Godzilla is on the scene you shutup and watch. He was treated with the respect he deserves.
The designs were cool, I even loved the MUTOs. They were great.
It was a beautiful movie with beautiful shots. I loved how they "shot" the monsters. Keeping the camera underneath was appropriate.
I loved how Japan-centric the movie was for a while. Definitely giving some respect to Godzilla's homeland. I'm a bit sad that Tokyo didn't get a good jostling, though.
The sound design was great.
The music was exciting.
I'm used to Godzilla being either a villain or an anti-hero. Being just straight up hero is very strange to me. The humans should have simply been standing in silent awe at the end, rather than cheering and clapping. And the music in that scene was a bit over the top. I think I prefer Godzilla as an anti-hero. Just a tiny bit of hostility towards humans at some point would have appeased me.
The only cutaway that really gutted me was the airport. The cut felt really awkward.
I think there is a bit in the middle where it dragged a little that they could cut out.
I like the "origin" in the prequel comic better than the movie. In the movie they say a nuclear sub lured the kaiju to the surface. In the prequel comic they say it was Hiroshima that had them poking around the surface. I feel that the message there is a lot stronger.
I wish Serizawa had more to do. Overall I wish there was more plot.
To my surprise the movie seems more modeled after later-Showa rather than 54. 54 was more emotional.