Bill, I agree with Lee. Talk to people who are actually using the lens & look at photos they have posted. There are a number of such on Rangefinder Forum. I have actually heard many nice reports on this lens.
What I can say from personal use is that its build quality is superb. It is one of the second generation of Voigtlander lenses, all of which share the same excellent build quality. I own the CV 28/3.5 & the Rollei 40 Sonnar, both of which are built off this same lens barrel, & both are top notch.