Outstanding camera and video in outdoor lighting, otherwise, hit and miss

I just took this camera on a trip with me to Hawaii, and was very excited to get to use the HD video, as well as have quality 7mp stills in a small package. I would say this camera can perform very well, but does have some drawbacks. Any picture you take in normal outside lighting is excellent as you would expect from a canon camera. I found it hard to take pictures with a sunset background because the people are always so dark you can't make out any details. I also noticed that in medium to low light it has trouble focusing on people. I have several evening and night shots where the subjects are just barely out of focus, to the point where I wouldn't want to make a print out of it. I was disappointed by this because I have about 40 pictures at a sunset wedding, and only about 80% are completely in focus. I will have to see if I can't figure out how to resolve this. In almost all medium to low indoor lighting it seems to have this focusing problem as well. I also took some family pictures in my condo at nighttime that turn out to be really grainy and not quite in focus, which was using the flash from about 10 feet away. But I did get some really good shots in the evening and indoors, it just seems to be hit and miss. The video is very good, it is a little soft like most people suggest, but it looks really good. At nighttime the video is extremely grainy, but that's to be expected. It does have trouble focusing sometimes, when you shift the camera to something at a different distance fairly fast it can take up to a half-second to find the focus. The zoom is great for video. I thought the LCD would be too small, but it is not too bad, and its really nice to be able to turn it in all directions. It is disappointing that you can only take pictures with your right hand, and when you take a picture of yourself, you can only do it with your left arm extended, but its nice to be able to twist the LCD around so you can see if you are in the picture. Overall, this is a A grade camera in good lighting, and a C+ grade camera in lower lighting. The 10x zoom is awesome, and the image stabilization seems to do its job.