Is the game buggy now and then? Yep.
Glitches? Sure.
Graphics good? They're alright, nothing super impressive though.
That being said, I love this game. The mechanics of it, the small details, the way every single interaction you have with other players is tense and unique and can lead to some really great stories of your own is well worth the drawbacks.
This game is about survival, by any means necessary....you can choose to be friendly, helpful, or a murderous psychopath, whatever suits your fancy. The game has loads of small details that I can't think of in any other game.
You can use the stars to navigate like you would in reality. The sun rises in the east and sets in the west. You can get sick, you can break bones, run a fever, tie people up, negotiate, all sorts of stuff.
Highly recommended. There is a steep learning curve, but once you get the hang of it and give the game a chance, you'll be pleasantly surprised.