Well, their evasion is better than the other classes and that's about it. Right now it doesn't even save you... you're still spamming stones/potions.
So unless you have some godly amount of DEX from gears I would think that at higher levels you'll be faceplanting more than anything.
Or you know, you can always just enhance and charm...
EDIT: So yeah, up to maybe 2 levels above you the mobs miss a bit more but again this class is meant more for solo or duo than a party. Later on they have buffs that increase the duration of their DoT but as a Trickster you don't want the mob to stay alive after 2-3 hits anyway... otherwise it'll be the death of you.
Definitely a good PvP class by the looks of it though.