I like user reviews that venture a bit away from the beaten path. Added bonus, some garneshing of engrish. How about lenses that "hunt like fanatics"?:
 
"Unfortunately, GF1's focusing speed becomes a bit sluggish in low light situations with the pancake and the kit zoom lenses alike. Moreover, although the manuals say that the two lenses afford a closest focusing distance of 0.2m and 0.3m respectively, the lenses hunt like fanatics when the subjects are around

these distances regardless of the amount of available light."
 
Link