Did the Cam in the rain, the car under the water, on a stand for continuous shooting and the dog (with separetem dishes) used. With regard to the price recommended quite clearly. Whether it is an alternative to GoPro? I can not judge because I have not yet gerbeitet with. She has done everything what I expected from her. The processing seems to be quite good, the underwater housing is tight, the shots are knackescharf and high resolution, the accessory is qualitatively and quantitatively excellent. The cam itself has in daylight clearly their strengths, at dusk and at night you have to make a few compromises hisichtlich the image noise. But for 5 star it is still sufficient. Clear recommendation.