It is an overall excellent device (SMSL AO300), well thought out with a wide range of connection options to the source and end components of the apparatus.
In terms of sound, I am satisfied with its clean, natural sound on both analog and digital connections. Speakers used are B&W CDM-1 + Dali SW-8; on the headphone output there is an excellent combination with 1MORE Triple Driver Over-Ear headphones (slight modification - removal of 2/3 layers of foam above the drivers).
I wanted (ordered) a black version, a version with a silver front panel arrived. . . :-)