Pros:
* Excellent sound with the Subtonic Storm.
* Delivers enough power to drive one of the most demanding IEMs in existence.
* Solid construction
* Compact form factor
* Responsive UI
* Beautiful design
Cons:
* The buttons are very easy to press by mistake, especially with the case on.
* Battery life is not very good. They advertise 5 hours in class A balanced and I'd say that's accurate.
* Can't be used as a Bluetooth DAC
* Latency in USB DAC mode (this is common to all Android DAPs)
* Gets very hot during extended listens in class A mode.
* Audio stream compatibility (with Plex). I tried watching a movie from my Plex server on this DAP and found that it had frequent stuttering and no audio. I eventually found out that audio streams with two channels would play fine, but any more than that could not.