It is early access preview, so various things aren't finished or balanced yet, but there is enough game there to while away some fun hours and to make me excited for the finished version, I played all the previous MOOs when they came out, and agree with the standard view that 2 was a gold standard in games of the genre, but I disagree with the purist negativity in some of the reviews here. It isn't an exact copy of MOO2, but as long as they see the development through, it could be a worthy successor.
Ridiculous amounts of high quality content. Tremendously engaging characters and stories. Lots of hard choices which don't have easy good/evil or right/wrong alternatives. Even if you ignore the (very good) graphics and just compare the scope and quality of the story, this wins out over all of the old classics in the genre.
