I'm a D2 fan.
Yes it's more work to sharpen but needs less sharpening sessions for the same amount of use as a steel that is easier to sharpen.
Knowing this, I use the D2 knives when I know I will either be away from my sharpening gear or not in a situation where I can dedicate time to knife sharpening. In fact, the CQC-11K in 8Cr13MoV is fine for me as an EDC steel because I can touch up the edge when I get home, but the D2 version of the same knife would go with me on a hunting, camping or motorcycle trip where I either can't or don't want to be bothered with sharpening.
I'm a carbon steel guy and they say that D2 is a stainless steel for carbon steel fans.