I just bought a IIIb (relatively inexpensive because of cosmetic issues, like the leatherette half-missing; I've ordered a replacement kit). I bought a cheap Jupiter 50mm lens while I wait for a Summitar to arrive, and even in its rather bad shape, I love the feel of it in my hands!

My first "good" camera was a Voigtlander Vito B (easier to load, brighter finder, but scale focussing only, no meter) so I don't think it will be too hard to adjust :-)