I recently switched over to the s5 from an iphone, and I'm totally in love. My only complaint is the issue of other iphones still recognizing my number as an imessage so I didn't receive some people's texts at first, but it doesn't sound like this would be an issue for you.
I am really happy with it, even the big size I am okay with. Just go with a phone that will work for your needs.
And yes, the camera is wonderful.
We are not human beings having a spiritual experience. We are spiritual beings having a human experience. -Pierre Teilhard de Chardin