My NAD C521BEE is a large step-up from my CE595. Better resolution, more musicality, and of course, better build quality. The only thing I find more enjoyable than the NAD, is that the CE595's aggressive sound signature is sometimes a little more appealing for Indy rock albums and SACD playback is nice to have for the few SACDs I own. Other than that, it's mostly downhill. The noise floor on the Sony is much higher, build quality is well, Sony, and it just isn't as refined as the NAD. There's much more grain and sybillance.