Here are some photos I took today with the Sony SAL 18250. No PP, and these JPEGs are straight out of the camera.
1) 250mm f/6.3
Telephoto wide open is slightly soft. Still usable IMHO.
2) 250mm f/8
Stopped down to f/8, 250mm delivers sharp images.
3) 100mm f/4.5
I'm not a bokeh expert but I like how it's turned out.
4) 18mm f/3.5
5) 28mm f/8
Even with the sun in the frame, there doesn't seem to be any trace of lens flare which is good.
6) 18mm f/8