After seeing them unveiled at the 2015 Winter NAMM show in LA, I knew I had to get my hands on one of these. They've finally arrived in Australia and I scored one immediately to replace my GoPro Hero 3 as my secondary camera. I've put up my first couple of test runs on YouTube already, which gives you an idea of how it sounds.
Personally I think it's great, the video quality very usable - no, it's not as good as something like a Blackmagic Pocket Cinema Camera or even a lot of the cheaper DSLR cameras - but let's be realistic, it's a video camera worth only just over $500 AUD that has excellent quality built-in stereo mics, studio quality recording capabilities and two external mic inputs... What more could you ask for this price?
It's very small, lightweight and easy to use. The touch screen contains most of the controls except for record and microphone gain, but I haven't had any trouble navigating it. I can't comment on battery life yet as I haven't used it for more than a few minutes at a time.
The lens is super-wide, making it maybe a little inappropriate for anything close-up, but considering I'm replacing a GoPro - it's much the same for me. I think the lens combined with the audio makes this much more appealing for live music use, but we'll have to wait and see how it handles low-light situations. Look out for more test videos soon...