I just got one one today and have had a play with the camera, and honestly, I don't know what the fuss is about.
The pictures look fine on the phone's screen, which isn't exactly small. And coming from an s3 myself, I really don't think you'll notice too much of a difference.
EDIT: just like to add the rest of the phone is just as good as near every review says. build quality just blows the s3 out the water