This camera is efficient and does its job well. I have owned it for four years and have taken thousands of pictures. Image Quality There are four levels of resolution for still photography. While many newer cameras are going into the megapixel stratosphere, this camera will deliver a quality image every time at lower price. Performance I have never had a problem with the performance of the camera. It delivers a consistent photo with every click. Ease of Use The camera fits easily into one hand and all controls can be accessed with the thumb. A novice could use it easily. Durability Four years and thousands of pictures later I still use it every day to take the many photographs that are necessary for my job. Battery Life I recharge my the four double A batteries about once a month for the camera. Energy usage is not something I have found to be a problem. Portability The camera is no bigger or smaller than most other digital cameras currently available and is easily protable.