I have an Iskra (1 - sans light meter). Ecellent camera with a glorious lens. I have never seen an Iskra2 with a working light meter, so you'd be buying extra wieght that doesn't help. It's a coupled rangefinder with an even longer baseline than the Super Isolette it's a clone of for better accuracy. If you can get an Iskra from Fedka, grab it and run.
As far as working with it, I just use Sunny-16 with all my folders and it usually works. It's a coupled rangefinder - bright and clear if a bit small at times, so no guessing involved.
I wrote a review at Fedka:
"In looking for a medium format folding camera, everything I was able to find on the Net indicated that the Iskra was an underated gem. That is putting it mildly. This camera is lighter and more compact than my 35mm SLRs yet has the advantage of the wonderfully larger 6x6cm negatives. Combined with a lens that has become by far my favorite and you have a camera that I carry with me daily. Everytime I go out the door, it's in my hand. There is a rumor in one online review that KMZ used the last of the Zeiss glass liberated at the end of WWII to make this lens. I don't know if it's true, but I find it easy to beleive because it is an excellent quality Tessar lens that is unlike anything else I've ever worked with.
The only negatives are that 1) the film transport mechanism can be fragile. Use it gently. 2) The 30x.5mm series V filters are not easily found and 3) it uses the traditional knob winder rather than a lever. Only the fragility is a real problem and that is cared for by recognising that it is a complex and elderly piece of engineering. Take care of it and it will take excellent care of your photographic needs."
Hope this helps,
William