A great game which knows what it is - and having a strong identity should help it a lot on a market full of games to choose from, I think. I particularly enjoy it as a tale of relations and relationships, one where the journey is the important part, not the finale. That makes it a satisfying experience even if due to real life circumstances you are unable to finalise your game (which is all too common in my opinion - campaigns never reaching the finish line) as you'd wish. As it is about telling a great story and not a "play to win" type of a game, it is most likely not for everybody. But if you enjoy storytelling, collaboration, (fan)fiction and shipping as such -- I think you have a high chance to enjoy it.
And if you don't enjoy any of those things you can still play it as a highly dramatic adventure tale about trying to defy the end of the world and enjoy it too.