Some of my impressions here. Played some PvE as a Charr Mesmer. Then tried a bit of WvWvW with it, then lvl'ed up my thief from yesterday to 7 (unlock weapon swapping and played some WvWvW with that as well.
Llyranor: ok, mesmer is great, definitely sold
Llyranor: WvWvW starts to shine at lvl 7
Llyranor: you pretty have all your weapon skills by then, 1 utility slot, and weapon swapping
Llyranor: but yeah, yeah, WvWvW is amazing
Llyranor: we were defending an island
Llyranor: so they invaders made a marine invasion jumping from a bridge nearby, there were sieging us, and reinforcement couldn't go in because the main gate was in heavy enemy presence
Llyranor: i had to swim my way to the back to find a hidden entrance
Llyranor: then went up the walls to rain arrows down on them
Llyranor: eventually we fought them off, then did a counterattack
Llyranor: fought them back to the docks
Llyranor: they were in a full rout, some dropping like flies, others jumping into the water trying to swim to safety, we swam after them in an underwater chase
Llyranor: phew, fended them off, we went on, but since our gate leading to that island was broken, the enemy could easily come back
Llyranor: so we fought off another wave at the battlements of the main continent, on the bridge, through the water, back to the island fort
Llyranor: eventually, enough reinforcement came for us to repel them again
Llyranor: we pushed past the previous gate into their territory, where we had a big battle (20+v20+) in an open field, lots of back and forth
Llyranor: as the battle raged on, we realized another invasion was going on right next to us, at the risk of cutting off our escape route
Llyranor: fortunately, we managed to hold on enough to fortify our positions, and sent one group back
Llyranor: we were still on the offensive when the server stopped
Llyranor: awesome stuff
Llyranor: weapon swapping is essentially for WvWvW, otherwise you just feel too limited
Llyranor: there i was shooting arrows, area effects, etc
Llyranor: dying enemy, i switch to sword/dagger, teleport to him, kill, finish, another incoming enemy, cloak+sword=stealth, then i use the return teleport from the previous skill to get back to my lines
Llyranor: you can use teleport from one weapon group, switch to the other weapon, use skills, then swap back + return teleport from the same skill
Llyranor: given that i had two teleport skills that allowed this, i could dictate my position on the battlefield
Llyranor: tried to, anyway
Llyranor: i've been crippled/netted so many times
Llyranor: so many
Llyranor: and averted death with a teleport arrow, or a shadowstep away
Llyranor: when i'm on the ground, one of my skill is teleport corpse, so i warp away just as they do the finishing strike and miss, then my allies back me up
Llyranor: good stuff
Llyranor: mesmer is great, lots of skills that summon clones in different ways (swapping weapons gives a lot of clone variety), and different shatter skills based on the situation
I think I'll have 3 characters to begin with. Engineer (my main - not tried yet), Mesmer, Thief.