I have a 205 as my current 4K player, and part time SACD / CD player (long story, mac MVP891 damaged during Home theater rack install). I think it plays great with acoustic and jazz music, reminds me of my old long departed Krell SACD in regards to music. So far, I am content with the sound, and the movies. But, as others have stated, critically listening to the 205 compared to other players, may lead to some consternation when compared to other players which can play at a higher level of performance, albeit, more than likely at a higher price point. If the mod brings it up to spec to other higher priced players, at a modest cost, then its worth it. I must search this mod...I am expecting the dealer to offer me a MCD550 or new MVP901, and whatever comes, it will be fun 5o compare.