I know alot of people always come and say "I don't have any problems in PvP" but honestly i don't except against higher levels and obviously getting ganked (which sometimes still takes em awhile), Clerics, and sometimes Sorcerers if they catch me first.
Once you get to a higher level 25+ you'll start to see better results with the right manastone build. Just be patient and don't give up because 30+ you'll be kicking butt solo and group... once again depending on your build.
However we do shine more in group PvP. Even with the failure rate of Stunning Strike your group will love you for it. We are also really good for giving that "Brick Wall" feeling to the enemy while in mass PvP
