I use it a bit, more with video than stills though. It's handy now and then if say you're taking notes on something, and want to record it with a photo or video. It's clunky as a camera because of the size, but perfect for taking notes and stuff because of the size - so for things like this, it's a bit better than grabbing my phone.
Also (mild spam, sorry 😀) the app 'Camera Boost' (which I wrote) does live image enhancement for the camera, including noise reduction and lighting adjustment. That improves the camera quite a bit, and it works with both video and stills. (If anyone wants to try that out to confirm it either way, it would be good as I'm obviously slightly biased! Just PM me and I'll provide a free download code.)