So I think this was a lot better than KotM at least, which was really all I wanted. It's not as strong as Godzilla 2014 or Skull Island but it didn't need to be.
I kind of appreciate they just went full self aware sci-fi in this. It's a little weird coming off how relatively grounded and self serious 2014 was, and KotM kind of waffled on all that stuff. The hollow Earth plot ended up feeling like more of sidequest considering it was the main goal of the characters, but it looked cool so I won't complain. The actual kaiju fights and set pieces are pretty great as they should be, definitely up there with Pacific Rim for me, it also looks great. Everything is pretty predictable once Mecha-Godzilla shows up, but Kong going full Kratos on it at the end was pretty rad.
The human cast is paper thin which is to be expected, but thankfully not annoying like much of the KotM cast. I didn't mind the Millie Bobbie Brown sublot considering they didn't give her much of anything to do in KotM so her turning into a conspiracy weirdo and going on an adventure with an equally nutty podcast host and her New Zealand friend was fun. The Kong side of the cast were inoffensive, I liked the relationship between Rebecca Hall and that girl, but rather bland otherwise. Also I was excited to see Lance Reddick in the opening credits but my man has one line in the entire film. The dude piloting Mecha-Godzilla was apparently related to Ken Watanabe's character but thats never expanded upon meaningfully.
I felt like the human characters also had a copy of the script on them at all times. Either that or they were all hyper smart and resourceful, they seemed to know exactly what everything was and what to do at all times. Like when the New Zealand kid goes "No, it's MECHA-GODZILLA", or when Bernie immediately figures out that Giddorah's skull is being used as a supercomputer. Or even Skarsgard knowing how to defib Kong with the HEAV.
Worth a watch for sure though. No post credit's scene so I'm not sure if this is it for Legendary's Kaiju universe or if they have more down the pipe, but this would be a fitting end point in all honesty.