I haven't finished this yet, but from the scans I've downloaded, I think I can review.
There will be people who love this manga, people who hate it, and people who think it's interesting yet are too afraid to pick it up again. It's a satire of Russian stereotypes and government, and it can be offensive. If you are used to horror, hentai, shocking things, and you aren't easily offended, I reccomend the manga just for entertainment value. This is ero-guro, but it's also very funny.
I'm a little ashamed to say that I learned about Russia from this manga, but I
did. The characters who were historical figures are hilarious, and the satire is amusing. It manages to be pretty funny through all the shocking scenes, but that's what the artist is trying to do: shock you, before you understand what's really going on.
The art style isn't really anything great, but it's decent. Althogh women are almost always given a bad role, they look quite interesting.
If you're just looking for a Russian history lesson, go elsewhere. If you're okay with guro and violence, then I reccomend this series, just for the Glastnost powers. It's a fun read, anyway.