I also had a Voigtander Prominent (we should start a self help group). It really is a beast to use as cliveh said, w/ an overly complicated design. Mine had a Heliar, another legendary lens. That was magical enough for me, and it had that 3D thing going on.
I sold it to buy a Bessa II w/ a Heliar, which was much easier and faster to use, but I preferred the uncoated Heliar to the coated one. Personal preference, but I liked the photos from it better than the coated Heliar. I never had much trouble w/ flare, just use a yellow filter, a hood, and don't point it towards the sun.