I just set-up my 676 to replace 5 device remote and a IR Dimmer switch! It took a few trips back and forth to the website to get all the buttons programmed the way I wanted them to work, but once all were in place, the remote works perfectly!!
I'm amazed that I can just push one button, and all the proper equipment powers up, and the proper inputs are selected, and off we go!
I didn't have much time with the original Sony SXRD remote, but I couldn't figure out how to jump from input 1 to input 7 without manually going from 1 to 2 to 3.... The Harmony jumps from one input to the next without cycling thru them all. I love this little remote!!
My only reccommendation would be to make the cirlce outside the "OK" button (controls up, down, left and right) a little larger! I realize they have lots of buttons crammed in at this slim part of the peanut design, but it still would be easier on my fingers if this was a little larger!
As issues arise, I just go back to the Logitech website and add the features I want, download them to the remote, and I'm done. I'm sure I will be adding new features and controls, but the design of this remote makes me look forward to making changes, rather than fearing them!