I've just opted for the preset 'home' settings, and the picture is, to my eyes at least, exceptionally natural. I had someone calibrate the previous Pioneer, but preferred it how it was before, so I'm loath to change anything.
It's hard for me to comment about the sound from the built in speakers, the previous Pioneer didn't have any. It feeds a good quality signal to the amp though, and I'm more than happy with the sound. The digital output from the Freesat HD channels is 5.1, and I'm staggered how much better it is. Doesn't sound compressed, and makes the non-HD stereo signals sound lacking in body. Hearing the sounds of a good tennis match echo around the court has made Wimbledon much more 'immersive.'