In the end, Guild Wars 2 isn't all that good after all.

[Buzzi]

I agree for the most. I currently had 300 hours playing it, really good hours, and still lack 90% on the things I wanted to do at the beginning (I completed map and story, maxed a profession and completed every festivity's achievement).
The real problem is that there's no sense of progression: sure you get to level 400 in leatherworking, just to find out that it only gives you acess to some exotic recipes; or you complete the map and obtain one of the thousands elements requested for the legendary weapons; you can fight in WvW, without much progression either.
The real problem though is the economy: in the end-game, you find-out that it just doesn't make sense. The gems are just a way to speculate, the events introduced some annoying mechanics for miniatures which prevented like 99% players from collecting them all, you cannot farm directly the components for the crafting (in 3 hours I found just 5 of the 250 needed) and there's only few ways to farm the necessary gold. Not fun at all.

I must say that I wouldn't go back to WoW either, since it is not really better in many aspects, plus you get to pay it. Still, it's a lost opportunity for Arenanet, I doubt it'll live as long as the first GW since the populations keeps decreasing...the basics of the game are wonderful (the BS for example, or the crafting concept), but the global experience is not as fun to keep playing thousand hours.