Excellent device with identical performance to similarly priced SLRs. Basically you have to be extremely compact with access to a less convenient manual modes ch'touille or you prefer to have precisely this easier access (with buttons everywhere on the case, it's true that it's convenient) but the price of a large size and weight. What he has in addition to the equivalent reflex in general is the swivel screen, touch (the size and resolution of the screen is the same), WiFi, and has less viewfinder (which can, however, buy an accessory.) it is extremely powerful and complete. Its optics are quite standard compared to similarly priced DSLR kits even see a bit more but as for these kits out, you better buy a little more performance optics to enjoy the high image quality that this housing can offer because it has a very sensitive sensor. And there by cons, the youth of this family of digital cameras makes it a bit lacking because there is a little less choice of focal lengths and the prices are a little more Eveles (compared to the first focal prices canon and nikon DSLR ) and there is no second-hand market for these optical. It's too young but it will come. In short, it's as good as a similarly priced DSLR see slightly more expensive, it has some elements more or less, depending on what you want to do and we want to stress we accept or not chooses a more or less bulky with its consequences. In this case I chose this great device because it is better to have a good hybrid in his pocket a big SLR closet!