Pros: easy to use, Simple controls/menu, Bright LCD, excellent image quality, good battery life, durable
Cons: Difficult to use, Complicated controls/menu, Poor Low-Light Performance, Heavy/Bulky
Have had the G9 for a bit over 16 months by now. due to its size, I do not use it as much as I should (with a similarly rugged camera in smaller package). Still not worked through all the controls, some pretty confusing. ISO control wheel is in a bad spot since it easily twists when pulling camera out of a tight bag (tight bag in order to keep size down), or just having it on the stomach in a sling. This has been fixed on the G10 though.
Camera LOOKS good, really great classic design, and picture quality is for the _most part_ excellent - as long as you turn off auto-ISO and stay on ISO at 200 or less. As others stated, higher ISO just renders horrible noise. I wish Canon would have kept MP down to 8 or 10 instead of jumping on the totally unnecessary MP race, or gone to a larger sensor. High MP on small sensor just does not work...
that proof can be seen in one of my old 2.1 MP S330s, which actually can challenge the G9 in certain situations. As always, Canon has a great color balance, but there is as with almost all digicams issues when you have very high contrast in the pictures (like snow and shadow).
Battery life is as good as one could expect. An added lock on the lid would be neat (like on the A720 IS), but have not lost anything yet. Always concerned when getting water droplets or (melting) snow on the extended lens but no problems resulting from that so far.
Controls are easy in "mostly" auto mode, but it IF you want to make adjustments, it takes time due to the wheel and menu design. NOTE, this is no worse than similar cameras of same caliber, just not as good as it COULD be. Why is it that the engineers always gets away with too much "features" at the cost of "good design"?