Finally got to check it out. KONG SMASH!
I had a lot of fun. Kong Skull Island might not be another ambitious remake, but it's a grand monster adventure. One of the things I liked most about it was actually the pacing, and I mean that in the best possible sense - it had archetypal, but likeable characters (John C. Reily was easily the most personable), introduced quickly and efficiently, plenty of spectacle action, and all of it was achieved that kept the story moving at a brisk pace. It's all I had hoped for, really.
Also, I liked how it's established that the natives on the island age at a seemingly slower rate, which evidently may be the case for Kong as well, and that, yes, he's still growing!
To put things in Kong perspective:
Evidently, Kong will be even larger by the time King Kong vs Godzilla takes place. Which, as huge as Legendary's Godzilla is, needed to happen anyways.