If you didn't know already I'm a big fan of Voigtländer lenses. Excellent quality and images look just as good as if they were taken with Leica lenses. The rendition is not quite as good as the Leica lenses but I'm not going to pay the prices that Leica are asking. Even the second hand market charges much more for Leica lenses than what the Voigtländer lenses cost new. Since I'm not a professional here, I really do have to think about money at times. I don't earn a penny from my hobby, I just take pictures because I like it. But...remember you can't take that money with you when they carry you to the graveyard.
One thing about these Nikon mount lenses is that the aperture ring is the other way around. Just something to think about if you're thinking about purchasing one. Does take time to to get used to it.