Pretty good!
Lauren's a harsher critic, thinking it didn't quite measure up to anything Rowling's created prior, but I enjoyed it quite a bit.
It's got a couple adorable characters, Jacob Kowalski and some little weed that looks like Groot.
I was annoyed by the hot dog that has "movie prop" written all over it, and the pocketwatch in the suitcase that appears "too perfectly arranged," and various moments dripping with cheese and "set fakeness," but it's still a really fun story, periodically enchanting and rather well done.
The critters and creatures are high quality FX.
Like most things, if you're a fan it'll be a slam dunk, and if you're not it'll be too contrived.
If you're on the fence, I'd say Go, as I do think you'll get carried away.
The ending is "too big, too forced," very "Ghostbusters," but it ultimately ends on a quiet, twinkly note, and I'm a sucker for quiet, twinkly notes.