I nabbed this as soon as I read it was out.
I'll save on repetition by saying that I agree with all of Haschel's comments. Suffice to say that this game is going to be a bit divisive, comparable to pre-patch S.T.A.L.K.E.R., Precursors, or White Gold.
I've only given it less than an hour so far, and much of that was spent trying to tweak the controls to a more fluid layout as it's fairly unintuitive. The tutorial consists of of a series of videos that the game reminds you to watch whenever you need to do something new, and most are either blindingly obvious or don't really explain themselves too well. The dialogue is atrocious, and the plot so far is utterly impenetrable. But overall my scattered impressions are more positive than critical; here are some reasons I am enjoying it so far:
The maps have a style to them that I find entirely appealing. Wide open spaces, insanely lofted ceilings, and bold contrasts.
Jumping off a small ridge will make you land with a massive thud and cloud of dust, which gives a great reminder to the fact you're wearing heavy armour.
I hacked a raider's brain and, while he was screaming in terror, made him turn and gun down his baffled comrade. Then I fried him.
I'm pretty sure I'll enjoy it more when I'm not juggling it with Old World Blues, as it's much too easy to draw unfair comparisons (why can't I loot that corpse? what do you mean I can only carry as much as I could actually carry?).
If you're willing to invest time and money into something that's not particularly slick or intuitive, but will be rewarding in the long term, I'd say E.Y.E. is worth it. And hey, you play DF, right?