I have an Ikonta 531/16 with a coated Novar 75/3.5 triplet that's pretty fun. It does OK, but it's not a stellar performer by modern standards. Lotta messed up pictures, sometimes it works. I prefer to think of it as my "toy camera". I find Ektar has quirky results if you miss exposure very much, so it's perfect for sunny 16 shooting with that camera.
It's "guess-everything": guess the range, guess the exposure, guess parallax framing corrections, guess whether flare is going to trash the image, guess whether Ektar is going to ruin everything... Challenge mode activated.
Not my pic, looks like this:
For serious photography, I love love love my GS645. Planars are few and far between, let alone multicoated with an exposure meter. I'd love a GF670 but it's just too much money. The GS645 is a good balance for me, and it makes a stellar travel camera. Between my XA and my GS645 I can travel real light with 2 complete rangefinder cameras, 2 different fields of view, 2 meters, 2 different films loaded, etc. Lots of flexibility and peace of mind.
They are kind of an ugly, cranky little duckling. I'd say about as reliable as a Nikonos V. My first one spent 3 months in KEH's shop while they tried to fix an
intermittent shutter problem, they eventually had to give up and send me a new one. Frankly they have a reputation for this crap - don't buy one without a warranty.
Not my pic, but looks like this:
2 handheld shots stitched together, either wide open or close to it. I confess I don't even remember what film - probably Reala?
You can definitely see some falloff, it shows up as a stitch line 2/3 of the way across, but it's pretty sharp right down to the limit of my scanner (V500). Here's a 1:1 crop from the full size image (jpg compressed twice unfortunately). Judging by the stitch line, this would be a corner crop from the right-side image. About as good as can be expected given "viewing conditions".
Works pretty well on people too. Not a whole lot of subject isolation until you get up close, but them's the breaks with a normal lens. All of these are on Portra 400.