Well, that's about half right...
...my #1 issue with the EC is that they took all the GOOD parts of KR (trees, background items, etc.) and flushed those...replacing them with awful, blurry, versions of the 2d art...and the KEPT all the stuff that looked horrible (horses, beetles, dragons, player models, etc. etc.).
Had they done the OPPOSITE and kept the player models, wearables, creatures and pets from 2d, and combined them with all the "world" art from KR, they would have had a winner.
Leave it to EA to lay another brick.
No matter what they do they aren't going to make a lot of people happy. That's the real lesson to be learnt here. With KR they started with the artwork, and built the functionality around that, but with the enhanced client, they started with functionality, and then added the artwork.
I agree, some of the models are ugly, like the much maligned dragon, but some of them really are terrific. Someone mentioned the nightmares, I think they look terrific in the EC. They have glowing red eyes and they really do look good. My only quibble is I would like to see some differentiation between the different types of nightmares, as there is with the classic client, but in the end that isn't a game breaker for me.
What was a game breaker for me, with both the original 3D client, and the KR client, was that you couldn't arrange items in a container and have them look roughly the same in the classic client. That made it impossible to set up a vendor in either of those two clients. With the enhanced client, if you use the legacy container mode, the container contents will look roughly the same in the classic client, so you can do things like set up vendors in the enhanced client.
There are so many advantages to the enhanced client, and I am not going to go into all of them again, they've been listed many times in other threads, and there are very few disadvantages, and there is a big patch in the pipe which should fix some of the biggest problems I have right now (notably lag which appears to be due to a memory leak or leaks).
Having said that it will take a long time to adjust if you are used to the old client. It took me at least two months to start to get really comfortable with the new client. You can set it up to function basically the same as the classic client, but there are enough differences, and enough of a difference in "feel" that it still is a jarring change, and of course the process of creating macros is very different.