In my experience anything with no control over the exposure isn't likely to be good. Basing this on a selection of horrible fixed shutter speed/aperture/focus compacts I had as a kid, they could just about get a reasonable shot in broad daylight but forget about shade, indoors, etc!

I have a Zenit B which I've yet to put a film through, every so often I fish it out, play with it a bit...and think "I'll use my Pentax SV instead"!