Bought for my daughter after much hesitation as Casio does not belong to me the "big" of the photo. Well this Exilim amazes me: Excellent reactivity (startup speed, time between 2 pictures), excellent battery life (difficult to assess as conditions using the flash or not, but I would say easily 400 photos) and photo quality. A problem required a return, but service provided by Nikken France very fast and efficient.