I can expect it to focus accurately right out of the box and not backfocus (as one did) or focus past infinity on a properly adjusted camera as another did. The one that backfocused was fixed by the headbartender's techs, and worked fine for a few months then began backfocusing again. I wasted too much money buying junk that didn't work before finally giving up and buying a couple of 30 yr old Leica lenses that 'just work'.
Like I said, the CV lenses were excellent optically. I loved the image quality, but I do this professionally, my gear has got to 'just work' every day, day in and day out, no exceptions, ever. The Leica lenses do that. I suspect that if I were to have some of the Konica lenses they'd be just as good. I will never buy any of the Zeiss lenses because they're made by Cosina using similar mechanical design (based on photos I've seen of a couple of them dissassembled online). Another source of sorrow for me, as the Zeiss lenses are said to be incredible optically. Once again, need stuff that 'just works'.
I am not wealthy; it was a hardship to buy the Leica lenses. I wish I could have done it cheaper. I do not regret spending the money for them though. They work and I get the image, perfectly focused, every time, no exceptions. I like that.