Yeah..I mean, it had some nice improvements: the massive expansion of the base race model selection is a big thing we sometimes forget about, I think, for example. But on the whole, this editor (like a lot of this game, if I am being perfectly honest) was pretty phoned in: we need a ground-up rebuild of the editor at this point. It's not just that the current version has outdated functionality, relative to what could be available (although that is to a large extent true), it that the re-use of UI and core code assets is making it outright unwieldy and even borderline broken.
Pair that with a game that was just poorly optimized for visual performance all around and...ugh...I seriously wonder just how many hours of my life were lost just to time spent moving up and down menus in navigation processes that could have been lateral, one-button moves, while the game froze on small buffering loads every few seconds. Terrible experience in that way. That was my chief complaint: that and other quality of life, functionality, and just a bunch of "wait, why does it work like that??" moments.
The asset selection was definitely not blowing my socks off either, mind you, but (at least by the end after the last DLC), it was generally sufficient enough, I suppose. I will say this: next editor should have 150 ExEq objects from day one. Can you imagine how much that one little (pretty easy to do in the grand scheme of development of a game of this size) change would have meant for this generation of CaS? But even more important than that: they gotta raise the ExEq limit. I'd be in heaven with 10, but I think 5-6 is probably the best we can hope for, if that.