Cinema 3 gives you the advantages of both a handheld and tripod mounted camera; i.e. with the speed and mobility of the handheld camera you can still achieve steady pictures. It also has improved steadiness because of the integrated hip and back support.
Cinema 3 relieves your back and shoulders. The load is redistributed to the hips so that you can concentrate on the actual filming. You won’t suffer from a strained back or shoulders as you would from normal handheld shooting and you will be able to work for longer periods of time.