Well there is a big difference between something that is 'different in a good way' vs 'bad design'. For instance the Vitessa is totally usable. The plunger is fast, the focus is done via a wheel at your right thumb position, shutter release at the right index. It collapses into a small compact package, and you can grip the camera well on both sides.
(whether or not it is reliable.. thats another thread)
On the other hand you have the inner/outer bayonet mount of the contax,nikon, and kiev rangefinders. This is pointless and outright aggravating.
So on the Kodak 35 mentioned above.. is the focusing gear pleasant to use or pita?
How about those bottom advance levers on the kodaks.. they have always scared me away from the later models (I have a iia). Are they easier to use, funky in a cool way, or do they make you want to drop-kick them in the ocean?