Received mine last week, satisfied with it so far. 
I'd have three feature suggestions for the next firmware update(s), @Shanling, maybe you could implement some of it eventually, please?
1. Option to turn off the screen after a set amount of time. Screen saver, but really.
2. Option to use less volume steps than 100 (at least in DAC Volume mode). So, for example, doubling the amount of dBs one step changes, ultimately halving the steps. I quite like how on the KA17 by FiiO I can have 60 steps (or 120), it's quicker for me to find the ideal loudness between songs.
3. Option to turn off the sampling rate indicator light of the circular button.
Thank you!
I'd have three feature suggestions for the next firmware update(s), @Shanling, maybe you could implement some of it eventually, please?
1. Option to turn off the screen after a set amount of time. Screen saver, but really.
2. Option to use less volume steps than 100 (at least in DAC Volume mode). So, for example, doubling the amount of dBs one step changes, ultimately halving the steps. I quite like how on the KA17 by FiiO I can have 60 steps (or 120), it's quicker for me to find the ideal loudness between songs.
3. Option to turn off the sampling rate indicator light of the circular button.
Thank you!