Well I liked it. A lot, even.
I absolutely have some issues with it, but at the same time I'm still trying to wrap my head around so much of it while even the next morning continuing to come down from the rush of taking it all in ― because above else, it's much more of a superbly crafted visceral experience (the 3D, the setting(s), the creatures, overall design of it, and all) than it is a particularly concrete, faultless piece of storytelling where everything gels narratively ― that I can't help but just give my gut reaction to it, which is definitely a positive (though not ecstatic) one, more than I can put together any real, articulate thoughts or arguments of it.
In the end, probably somewhere around a B+ for me. I'll try to elaborate more later.