Hi.
From my own experience:
Rouge before 20 lvl isn't very strong.
I've Xbow rouge and on 18 lvl i haved problems with killing Chakjis and Chakji Workers. After 20 lvl when i get new skill and Crossbow Extreme it's much more fun of play as rouge
Each hit from Long Shot gave 980-1200 dmg with NPC items only. Thats is 1 hit K.O. on regular Chakjis (i don't have time to check how about Ghost Bug, but i think its 1 Long Shot and 1 normal shot from xbow).
Same with Daggers - 20 lvl and this stupid Nemea Lions on 1-2 combos

) but... with daggers i dead too offen, because i must go nearby enemy. With Xbow (even if your Xbow Extreme reduce your phy. def slighty ang hp by 50%) i died only one time after 20 lvl - (when i try to kill Champion Party Chakji without zerk

) but range of attack is sweet

Fast Shot 15 m, so you can hit once on mob, and after that Long Shot (it have additional 7 m range), and it's done... mob is dead - if it's champion you shoot him with Power Shot - as above - it's dead

)