Interesting, I haddint seen the JVC. I have a Hero2 and I really like it. What sold me was the footage and also the durability. People have tested these and Gopro has delivered. On youtube Some guys sent one into space via high altitude baloon and it survived...another guy lost his while sky diving and it survived the impact from thousands of feet up. And a surfer in CA had his gopro fall off of his surfboard....he put up lost gopro flyers at that beach and 2 moths later after being tossed around by the ocean, some fishermen found and returned it. It still worked! not to mention if you accidentally scratch the Gopro housing, you can replace it. What I love about it is that I am not afraid to put it in danger or risky spots, where I guard my Canon with my life and wouldint put it half the places of the gopro.