Summary: Good camera. It's nice that it's waterproof. It's perfect for shooting videos in the rain! Don't want to take my $10,000 film camera in the rain! It sort of makes the rain look thicker because of the small lens. It's a good B-Roll camera. Great for Vlogging or Vacation quick moment shoots. This camera lacks good audio though because of the small tiny mic it has. No internal microphones or headphone jack!!!
Summary: Shipping was quick - I bought this for my 8 year old son who loves to take pictures and videos. He loves this camera. The camera is good and the picture quality is outstanding. It is comparable to the quality you find on the higher end smart phones, but without the phone. The biggest con that I see is that the charging section is a little flimsy and if you are not careful it can be bent or broken easily and you would then not have any way of charging the camera.
Summary: I took this to a water park with my kids. I'll use it again for "wet" events, but the picture quality isn't that great (better than a cell phone or disposable camera, but worse than a mid-range point and shoot camera). However, it did not leak, did not break, and stood up to a beating hanging off my wrist at a water park. For the price, I'd buy it again, but I'd never use it as my primary camera.
Summary: it does basically exactly what i wanted from it. it takes clear hd video. I dont use the underwater ability of it so i cant comment on that. one thing i recommend is using a tripod otherwise it may look a bit shaky. other than that nothing i can really say about it.