I just bought my 7D last week and am VERY impressed by the handling of the camera. Its way better than any Sony Alpha Ive used (ok I didnt use much, only played with A200, and owned/sold away A330, A350, A500). The exposure compensation / flash compensation dailer is absolutely wonderful. Why did Sony remove it from the Alphas??? With the dailer, I can look thru the viewfinder and change compensation at the same time without moving my eyes away. With other DSLRs, I hv to take my camera down, press the exposure compensation button then recompose again. Much more hassle.
Another button I love very much is the MF/AF toggle/hold at the back of the camera. Beats the MF/AF button at the front side of Alphas (harder to reach). Mirror lockup is also a good function of the 7D which will be useful on night photography.
The only complain I have is the low resolution LCD screen. It seems pretty bad when compared to the Sony A500's LCD even thought theres only a 30k resolution difference. I thought they should be comparable, but the 7D's LCD makes picture reviewing very dull. Of cos it doesnt affect picture quality at all, but still I was hoping for a better performance of the LCD.
Nevertheless the 7D is an extremely good camera, great fun to play with