I had a Canon T70 that was abysmal. My god did I hate that thing and I could never focus the lenses either!
The Super Ikonta copy, Moskva-5 and the whole Moskva series suffer from left-handed operation as well as having a protruding tripod socket, so that if you did use it on a tripod, it would only be suspended by the screw and float about. Super secure!
One camera I have always wanted but have never bought because of the design was the Fuji GS645 folder. I just know I would break the shutter linkage in the first ten minutes and don't forget the bellows. I didn't know bellows could be made out of tissue paper, but hey, the Fuji engineer that designed the shutter linkage didn't feel like stopping there. It was probably his last day on the job and was ticked off at upper management...
I had that camera ... for about 1 week. The one with the crash-bar around the lens, yes?
The icing on the cake was having to use a match stick to activate bulb mode The shutter sounded cheap as well, but it took pretty good photos.
Ergonomically I never "got" the Argus C series or Yashica Electro cameras. I'm aware they also take nice photos, but were unpleasant to use.
I am still on the look-out for a Yashica Samurai (cheap) - however my friends would most likely push me into oncoming traffic if I showed up with one around my neck.
Perhaps I should have explained that while I am right-handed, I am left-eyed, so when using any "normal" 35mm, I have trouble with the film advance and associated paw fouling my face, with the Exakta's left hand advance and my left eye on the viewfinder it's actually an advantage for me.