I saw it yesterday. I will qualify my thoughts on it by saying that (surprisingly?) I've never seen the 1941 original so I don't have any preconceived bias or preconceptions.
I rather liked it in an easygoing way. It didn't blow me away, but I can't point at anything bad about it. In terms of cinematography I have the observation that the mood and atmosphere they were portraying precluded any sunny days as opposed to it being overcast all the time.
Another nitpick I have is the music. There were times when I thought a scene would have been more effective with silence rather than accompanied by music.
I liked it being a period piece for the same reason I liked Peter Jackson's King Kong
set in an earlier time of greater scientific innocence, a time when the fantastic is easier to accept.
Still, I thought thankfully that it wasn't over-the-top. I'd give it a B because it wasn't as bad as it could have been, it was better than might have been expected but not amazing.