One of my favorites
This comic is definitely one of my personal favorites of all time. I'm a very big fan silver age comics, and this is about as close as I have ever seen a modern comic get to that style. It has all the great stuff: comic book science, horrible stereotypes, and colossus. Not to mention, it's a What If? comic, so you know the story line is good and that it features pointless cameos by other people who have been What If?'d. This one includes a cameo by "Lieutenant von Doom", because if the fantastic four were russian, obviously doctor doom would have been too... right?
The comic does have it's downfalls, though. For example, they completely ruin colossus' character over the course of the book. Setting aside that he gets an entirely different origin story, over the course of the issue he get's dumber and dumber. By the end of the issue, he can barely form complete sentences. So, I guess that means that when a Russian version of Ben Grimm goes to space, it gives him brain damage. Thank god for the real Ben Grimm's superior American brain...