For the price, expectations were not high. Previously used with video function on a MTB Fotoapperat. In relation to the simple Hero is a quantum leap. However, I use them only as to "run along" and if there are good scenes, then cut and put into the forum, so Gelegnheitsnutzung. But I find it perfect. Battery lasts about 3 hours (continuous video recording on 32GB card). Is permanently installed. If that's out, the camera is probably in the trash. Too bad. VLT. one can or similar with the one connected via USB Powerbar prevent. Processing round professional. I use them with a chest strap, which leads to more turbulent naturgenäß images than with helmet attachment. Verdict: Even with this experience I would buy it again.