I enjoyed it, though the ignorant mono-lingual American that I am would prefer less of it in German.
Only played so far from the Rebel end in the 2-way Rebel vs. Imperial campaign - I simply do not like the criminal faction's presence, particularly since they start off able to access their best units while the Rebels and Imps can't. Mimics the way the Zahn Consortium was implemented, but in the wrong ways.
I liked their focus on scripted missions, though a number of them were somewhat confusing and could've used a bit more explanation to them. Similarly, it would've been helpful to know from the start that a lot of buildings simply can't be build in the Rim - the Rebels HAVE to push into the Core to get their top-tier land units, as well as to start getting anything more than a pitiful income. The biggest improvement it has was ground battles, I think, with the integrated infantry/rocket platoons being quite nice, as well as the commandos being a full squad with shields and various special abilities rather than just one guy with a sniper rifle.
The space battles... at first I enjoyed them a great deal, until later in the game, when I had already pretty much won (taken Coruscant, Kuat, Corellia, owned 3/4+ of the galaxy), when I realized that I'd never had any battle that came close to the scale you'd get in ICW, or RaW for that matter. With the limited income and very high ship costs, even the AI on hard doesn't build a whole lot of ships, and so once you've set up your good couple of battles that take out their ISDs/VSDs (only a handful of each), you've got nothing but mop up for the rest of the game unless you just sit back for a while doing nothing. The AI simply will not end up massing a fleet again that you need to worry about. This'll happen in ICW and RaW, but not as early and not to the same extent - by the time it happens in these, it feels earned, whereas in AotR I felt like I'd just gotten my fleet together and was ready to rumble when I realized there was nothing to rumble with. This problem of scale exists in other ways as well; the Executor feels WAY too small, and even the biggest campaign is only equal to a mid-sized ICW game.
Also, while I overall like the look of the space battles (a number of ship models are quite beautiful), I strongly prefer the massive firestorms of ICW or RaW to the "single shot equals the damage of lots of shots" style they went with. I know it's meant to keep graphical needs and hardpoint counts down, but it doesn't really feel right.