I bought this camera to replace my SD400 which I had a broken LCD after I accidently smashed it. To my disappointment the face recognition on SD770 doesn't detect well, so alot of times, it focus on the wrong spots, and the image came out blurry. It's difficult to get the face recognition/focus to work on the spots that you want, so you have to repress the button many times to try to get it to detect right. It does have the function to set it to always focus on the center, but it beats the purpose of having face recognition. I like the outdoor photos taken from my SD400 better even though it has lower megapixals. The sky and green came out much nicer tone on my SD400. SD770 also doesn't do well in low light setting, but that is to be expected of a point and shoot camera. The quality of the video is average and sometimes quite grainy. The good parts about this camera is that it is lightweight and compact, so that it is easy to carry around.
San Jose, CA