I was skeptical of GW2 (I played GW1 and hated it. Instanced everything, ect)
But I decided to give it a shot anyway. At first it was very boring, but once I got out of the generic mindset of "Grind to level" and started to actually explore the zones and visit other races zones, it has become pretty entertaining. I'm not the type of gamer that cares about the "beauty" of the world or anything like that (I skip every vista cinematic) but its atleast a refreshing and new way for me to play MMOs.
PvP might be more fun in organized play, but RvRvR is just a big zerg fest like I know it would be, so I didn't really have my hopes up for that.
The only thing I'm concerned about for this game is, how entertaining is it going to be at 80? and for how long?
I'm a huge pvper, but I need something other than pvp to keep my interest (I'd rather play LoL or FPS for pvp).