I enjoy dark knight and is my main job (and currently only job I'll take to 70 due to IRL) as I finally decided to head into savage content with a static group. Currently on v3s and I agree the kit can use a few fixes as the limited tank buster CDs I can feel in there. While as MT in v3s I am able to rotate alright on her big tank busters I am riding the line a bit but not sure if that is what they want for the DRK. It does feel more exciting to play but some improvements would be a welcome. OT dps is fine as I do as much as (around 2600-2700 on our FF logs of v1s) I wish DRK to be about even with the other tanks in damage with WAR being the top and PLD as the third with the gap between the three pretty close.