Bought this on a whim for $6 on eBay. Here's what it looks like:
Pretty tiny... Definitely a lot smaller than the 02 zoom, and it's a nice "pocket" lens. Build quality is excellent. All metal with butter-smooth focusing. Focusing is a piece of cake using focus peaking with this lens.
Here's some quick test shots:
It's decently sharp with a halo effect around highlights. I suspect this is due to it's 1.4 aperture. A lot of fast lenses exhibit the halo effect wide open, which disappears when stopped down a notch. Unfortunately, you're stuck at one f-stop with this lens, so you get what you get. Under the right conditions, I can see it being a cool effect, though. It's got that "dreamy" thing going on. It also covers the whole frame with no noticeable vignetting. Thanks to the 1.4 aperture, you can get some shallow DOF action going, too. Contrast is a bit low, but easily bumped up in post. Thanks to the fast electronic shutter on the Q, you can shoot with it on a somewhat sunny day outdoors at ISO125. I don't think the shutter could go fast enough to handle snowy conditions in bright light, though.
Definitely a "character" lens, I imagine I'll be using this one for low-light night walkarounds & indoor shots. It's only real flaw is a non-adjustable aperture. For $6, I think I got my money's worth. :-)