"Regarding reliability with ChiFi, I have a Gustard x20 pro. The display has paritally failed. I also read some threads online about similar display failures in their headphone amps or preamps, and in the case of a headphone amp, a failure of the volume control relays."
So, because Gustard has quality issues, you feel free to paint all Chinese products with that brush? Sounds like you have an issue with China.