The game has a better storyline and follows a lot of the lore (if you're into that stuff)
Like most MMO's, it will get repetitive. This is pretty much what all games are these days.
However, I think this game is a game where you have to be playing with a friend otherwise it's just boring just because of the amount of times that you might get into a little pickle like 50% of the time if you weren't careful like me.
The community itself was a lot more... Gentle on noobs. They actually helped, instead of bashing them like the people do on WoW mostly if the question is stupid.
I don't think you should let us decide for you on whether or not this game is worth the download. You should just download it and try it yourself so you can say you've tried it and not think about "what if" later on.
In the end, each person has their own opinion and you might not agree to it.