What is your current build ?
Leveled 1~50 as Darkness and enjoyed it the whole way. Some of the later class quests the other deception Assassins in my guild were failing hard on were a breeze for me. No regrets, I've tried madness and deception specs and always fall back to Darkness. Now I main tank guild raids and I'm coming up on Valor rank 60 usually topping the medals in nearly every warzone. Since I'm on a PVP server being able to 1v1 just about anyone I come across as darkness spec leveling up was really nice as well.