I currently have the DK in 45 and like it a bunch. It's the two-tone, I'm a sucker for two-tone, and the gun not only looks great, but shoots well too.
I have put close to 1K through the pipe so far without a glitch. I have heard of a couple folks having magazine issues, but not me. I did buy a couple extra after markets McCormick's for it and they work flawlessly as well.
Recently bought a 22 conversion for it too. Didn't realize it was a series 80 though so I hadda have a smith mill out a small part of the conversion slide in order for it to fit. (It was an old slide that fit a series 70 without issue.)
Personally, I would recommend this gun to anyone interested in it.