I just bought it as a secondary source for casual listening. I'm using switching mode power supply only, therefore, it does not sound as good as CD. I guess a good linear power supply can make it sounds closer to the quality of CD.
It's almost plug and play. It can be controlled by iOS, Android, Mac, Windows, Linux etc. It supports DSD, FLAC, AIFF, etc. It costs only $142 - $182 USD.