I've been shooting with my Iskra quite a bit in the last week. Mine is a Iskra 1, retrofitted with a red window as the auto counter mechanism gave up (seems to be a weak point). I only paid $40 for it as it was also quite beaten up but shutter was working perfectly and came with Oleg's warranty.
Another weak point (IMHO) seems to be the speed/aperture coupler. Both rings are linked via a metal tab which seems to require some care. In fact mine broke and now I adjust both rings separately (which indeed I prefer).
That said, one has to come to know the quirks on this beast, and if done, and the camera keeps the correct lens panel alignment, you can expect the results that its Tessar type lens promises, with a sweet spot in the 8-11 range.
$175 is already some money. If you're decided to get a folding camera, I'd also consider having a look at Super Ikontas and maybe some serviced Bessa II or Perkeo II with the 4 elements lens and see what you can find. There are also some 'forgotten' ones like the Franka Potente er.. I mean, Solida

and the Ensigns, and then there are TLRs as well, yes, folding cameras are smaller, but only when folded...
If you have the option, see if you can get a test period to see if it's really what you're looking for, just my 2 cents...