My friend picked this up for me in Japan last week, and I threw it in for a quick listen (detailed review coming later). The initial red-book disc simply sounds muddy, and the audio levels on the disc are too low (resulting in turning volume way up, and then when listening to another disc/song, turning volume way down). Sound seemed to be mostly mid-range muddled sound, with very little in the way of hi/low frequency detail. The SACD sounds better than the red-book disc, but not night and day better. Initial listening (Everything She Wants) reveals a cleaner sound with more in the upper range, but still wanting in low frequencys. An improvement over the red-book release, but not enough to run out and buy it.