i played the class i play for 3 years and its fun as ever. never gets boring.
i think you just want OP builds.
I have a 15/30 HA build atm, you might think its OP but its not by a long shot (and i dont like it, one reason why i stopped playing was that i couldnt switch my build as it would cost me to much
). If i had the possibility to respec without losing all my xp i would come back with my old swiss knife build, which is not op at all.
I bet your char build is more "OP" than mine, but what matters in the end is the player skill not the build
EDIT: I might also add, im not looking for an OP build, i want the possibility to change build at high lvl as it allows to have more diversity, be more "unique". Today most people are rolling with the same generic builds that offer little change in gameplay.