I guess you can say it's good or bad depending on what you compare it
to. Compared to most consumer zooms the crops you took with it are
actually good. It's also fast and without the batteries it's only about
500g and not too large. It's also a very interesting piece of
photography history.
>From what I read the focus assist on the ME-F is actually more helpful
than the one on current Pentax cameras (2 red arrows + 1 green led)
Your test actually made me buy one (33.00USD for the lens + 31.50GBP for
an ME-F camera on Ebay). I'll post some more news when I get them.