I happen to have both cameras, and like you, I am a bit disappointed with the IQ and focus consistency of the S9100. The P7100 is a completely different beast. I am trying to get rid of the S9100, while the P7100 is my new take-anywhere camera, and the perfect companion to my dSLR.
I have appended 4 photos from my trip to New England in the fall, the first two are from the S9100, and the latter two from the P7100.
|Blue and yellow in water by fireplace33|
from Ink and water
|Kylmä joki kopio by Kaappo|
from Shutter speed 1/25 or slower
|WR_2.8_13 copy copy by photoprof|