I've had my 570 for a few weeks now (had a 460 for a week, then realized I messed up when the 570 came out and made the swap) and I am really happy with its performance.
-Blu-ray PQ is excellent
-SD PQ is pretty good (I switched from a Samsung UP 5000 with HQV, which was as good as it gets - but I have not been disappointed at all with the 570)
-Netflix works great
-Pandora is cool. Slacker has limitations in the Sony form, but Padora works with your on-line account.
-SACD super cool. HDMI/DSD to my receiver. Simple. Clean.
But I've got one issue. I have HDMI set to "Auto" and was getting the native codec displaying on the Onkyo 706 I have it paired with (Dolby TruHD, etc.). But since the latest firmware upgrade, it now appears that no matter what I do, I get PCM sent to the receiver for DVDs (still get DSD for SACD). Am I missing something? Anyone else notice similar occurance?