Excerpt: So, while almost everything has been said, and people who needed to, just found what they wanted, I still add something, more technical wise... Body, design, ergonomics: The camera just fits in bigger pocket, so It´s the one of those pieces with nice mix of features, while you really can carry it around, and not miss the oportunity. That was main buying reason for me.
Conclusion: I am a serious amateur and I carry a camera with me at all times. I travel a lot, and when on business I find it impractical carrying my 5D Mark III. I recently spent twelve days in Japan part business and part pleasure, and I only had my Canon S120. I took a few days off and did dome sightseeing, and ended up shooting over a thousand photographs. The quality of the photos is stunning. You certainly get a big bang for the buck. Bravo, Canon.
Pros: Nice features/settings, excellent image quality, Lightweight/Portable, easy to use
Summary: For a point and shoot camera, this is fantastic. There may be newer 2013 technology, but the G15 takes nice photos. It is simple to use, very straightforward, and the zoom feature is quite decent. I would recommend this, but only for someone who wants to buy a point and shoot camera. It beats a cellphone hands down.
Conclusion: I bought this camera to take on a trip to Niagara Falls, NY City, DC & Virginia because I did not want to take my DSLS. It is compact enough that I could carry in purse, pocket etc. I got wonderful pics of the falls, excellent night pics in NY, statue of Liberty, monuments in DC. I bought the adaptor so I could use a polarizer. You need to watch the back of the screen when turning the polarizer, it will not show any change when looking through the view finder.
Pros: good battery life, Good Low-Light Performance, Nice features/settings, excellent image quality, durable, Bright LCD, Lightweight/Portable, Simple controls/menu, easy to use
Conclusion: I had a G12 and it took stunning underwater photos. I decided to "upgrade" to a G15. Huge mistake. Nothing but problems with this camera. Takes way to long to focus and images are no where near as clear and as sharp as the G12. I would give this camera back to Canon in a second to have my G12 back.
Conclusion: I had purchase the SX 150 in September of 2012 and was disappointed with it's performance. Everything about it was sub par and I was considering going back to using my A570is when I decided to purchase the G15 in April of 2013. After using the G15 now for 6 months, I can give it a great review. Definitely worth the money. Faster continuous shooting, quicker focus, and f 1.8 lens and long battery life.
Pros: good battery life, Good Low-Light Performance, Simple controls/menu, easy to use
Excerpt: I bought my wife a D7000 to use with her 16-85mm DX af-s g which she likes very much but is afraid to bring it with her on trips outside the US; I did not like her point & shoot for a number of reasons so I bought her a Canon G15 and a SanDisk EXtreme through GEARSHOP - good price and free fast shipping. She likes this little camera: quick focus, solid feel, has a hot shoe, and she noticed immediately, the photos look better than her point & shoot.
Summary: We did a lot of searching and review reading before deciding to go with the G15. We are not let down. This camera is simply the best in its class. It is so easy to use and is capable of so much. I did have to spend some time with the manual for the more complex shots I wanted to do, but after reading the easy to understand instructions, I had my custom light balance programed into one of the selections on the top dial (C1 and C2 are fully customizable settings- love this...