Yep, honestly, I do not make time for it once a week, or even once every two weeks. I put if off. If the dog would just HOLD STILL, I could have the job done in like 3 minutes – maybe even 2!
Dobermans have thick black nails (which of course means you can't see the quick). My current pup's nails, though he is larger than a Dobe, has about the same nails as one, including the color. So it is quite familiar.
One thing is that a dog's nails is that some of them get worn down more with walking and running, and some of their nails get a lot less natural wearing down and thus are almost always longer. On a given paw, you've got nails that are longer and nails that are shorter.