I really like the new atrium and the new chandelier. In my opinion the old one was an eyesore, a very unique one at that. I miss the old buffet, I have never been a fan of the pods, people seem to just get lost for some reason with the pods. We actually enjoyed Carioca's, the food was good and the decor wasn't that bad either. The rainforest room on the Magic is nice, but a little of a let down after having used the one on the Fantasy for a week, if you have never used the one on the Dream class ships you will love it. The AquaDunk is a lot of fun, very short but a lot of fun. Don't wait in long lines to go on it, you should be able to find times where there is little to no lines.
As for the CL I think it was great that they added it, even though we will likely never use it. We did Concierge twice on the Fantasy and the lounge definitely helped us justify the price. The only thing that I found a little off was the CL sun deck overlooking the adult pool, not sure that would be the view I would have wanted, but overall it really doesn't appear to take up much space. The new kids spaces are really cool, especially Andy's room and the Avengers themed area.
We also thought that the splash pad area was very well placed, on the Dream class we rarely saw this area used, but on the Magic with it being next to the smallest pool it was almost always in use by at least 1 family.