Had this a few months now and to be honest not got nearly as much time with it as I would have liked. But the time I have had has been so rewarding and enjoyable and I know it will get even better as the capacitors burn in. Very expensive but there again it is esoteric. I have had many players from the likes of Pioneer, Onkyo, Fiio, and also Sony themselves etc.... all very good in their own ways but this one gives sound quality way above of the competition. Highs, mids and lows all very spacious and well segregated, it's like sitting in the middle of the orchestra and I am hearing detail I never knew existed previously. I have read many letters and articles about spending so much on a player that hasn't even got wireless capability but this dedicated focused player just does so well the thing it was designed to do.... play music to the very best sound quality and delight! It brought home to me just how disruptive and quality destroying listening through Android based players actually is. Build quality is what you expect from Sony, magnificent and the firmware easy to use and intuitive. I also like the weight of this copper player, you feel as though you really have something quality and substantial in your hands. Sits well in the palm with easy access to all the buttons which feels very natural.