+ Housing has not changed, change owner of the 77 to 77 can seamlessly II
+ Wheel will be unlocked by a button, adjust accidental is even more difficult
+ Noise ratio lower than that of the A77
+ Wi-Fi / NFC
+ Ultra Geiler autofocus, faster and more precise than with the A77
+ Battery grip of the A77 could be used
Conclusion of the positive points: make a very good camera even better Meaningful improvements.
- GPS now missing completely (I find personally but acceptable)
- AF-assist Beam is now in flash pop-up and no longer on the Body
Conclusion of the negative points: One can on the options actually very well do without, especially the GPS I mourn not to.
All in all, I like the A77 II very well and me itch in your fingers to switch to what indeed is actually very nice, but bothers me personally is the change from Minolta on ISO Hot Shoe, I had to work with adapters to my old to continue using flashes.
All in all, a strong buy recommendation and my personal opinion, one of the best APS-C cameras on the market.