I just got this camera three days ago after the postal strike. It has been sitting in the post office for days. I finally took it to my Canada day photo trip/test.
Best compact camera I got so far. I have Panasonic LX1 (very noisy starting from ISO 200), Fujifilm F31 (slow but very well balanced camera) and F200 EXR (rate between the LX1 and F31).
For Canon Powershot 300 ELPH:
Video: Excellent in video quality. Absolutely comparable with my Panasonic HD camcorder. Now I don't have to bring both camera and camcorder for my trip since Powershot 300 video equipped with zoom function.
Day time photos: At auto mode, light detection is quiet accurate. The picture color is sharp, nice and bright.
Night time photos: All photos are usable even at low light situation.
Can be better if:
Canon do not put all the preset program functions into one;
reposition the flash light so that shadow wouldn't at the corner for some shots and
longer battery life