it seems OK to me in decent light (i.e. outdoors during the day). In low light though when flash is required is when it gets annoying. It seems like it is focused, and then you press the shutter button and it searches for a focus again and flashes about 4 times and takes an unfocused picture.
Here is an outside picture I took in very overcast lighting. It's no iphone 5 camera.
edit: my photobucket is resizing the pics on its own. trying to rectify that so i can display the full size pic.
edit2: since i have a free photobucket the largest size i can produce from it is 2048x1536