I did some WvW, it is a nice concept, but i think you really need to be in a group to enjoy it.
It's the same for PvP for me, just pressing random buttons and hoping the enemy bar will go down ( which somehow didn't).
I guess PvP is just not made for me. Looking at all the traits and skills are kind of a spoiler for me, so i don't want to 'learn' them yet for effective use. The thing with PvP is, you got all those skills and traits unlocked, and you'll need to know them and effectively use them if you want to survive.
I REALLY enjoy the PvE though, loving the story, the traits, dialogue. I have yet to use crafting, but kinda no point in the beta. The weapon skills are a minus, just 5 to live with.