I agree with your assessments. Good stuff.

I’d say that, overall, being 3D didn’t add much. Which makes sense, because it wasn’t filmed with 3D in mind, so nothing really took advantage of it. There were a couple of shots that jumped out, but not many.

It didn’t take anything away, though, which is always a risk when someone redoes a movie. I can’t think of anything in it that was worse off for the conversion.

If you want to see it just for the 3D effects, don’t bother. But if you like the movie and want to see it again, or if you’d always wanted to see it but never got around to it, the 3D shouldn’t stop you. (Unless you can’t stand wearing the glasses, of course!)