The difference in the actors' approaches is kind of interesting. Crowe and Barks are pretty much singing like they were on stage (Barks a bit less so), whereas Jackman and Hathaway especially are pretty heavy on sing-talking.
"At the End of the Day" is the standout sequence there, I think.
I like the realistic look overall, though I'm not really sure how they're going to make "A Little Fall of Rain" work in this aesthetic.