Saw it last night. I completely agree with the 7/10 rating that the large majority seem to share on this one. The story is decent but nothing to write home about and there are a handful of cringe-worthy dialogue moments. All of that made up for though by all of the destruction and carnage laid out by the monsters (seeya Boston). All of the monsters, especially Monster Zero, were pretty well reincarnated, IMO, as was GZ.
It will be interesting to see what they do with GZ vs KK. Not only does the ape wonder need to grow but he's going to need to develop some super powers if he's gonna hang with the lizard.