Bought as a "bring anywhere recorder". The sound quality is about on par with the H1N. Build quality is also about the same- adequate.
32bit float is convenient, but the noise floor of the recorder is quite high, so the usability will vary depending on how loud your sound source is.
I have found it great for recording louder sources, for recording spot sounds and fx I would otherwise miss.
The inbuilt mics are a little too noisy for quiet location field recordings, but, because it has plug in power and a 3.5mm jack input, you can plug in a set of stereo omni mics like those made by Lom, Micbooster etc.
So, overall, a very usable device. The self noise is easily offset by the convenience, the ability to use external mics, and for the convenience of the device.
My use case is primarily for field recordings in urban environments where there is a lot of noise, and where the device's small size is a big advantage. I also use it with binaural mics and it's equally good with those