I bought the S580 at Best Buy, had it for 1 day and returned it. The player is very similar in looks and perfoemance to the old model, S570 but there were two things I didn't like so I returned it. 1) I don't know how,but Sony managed to produced a player that it is slower to boot up than last year's models. It took about 30 seconds just to boot up without quick start enabled. I don't use that feature, however, the S570 I had, only took about 22 seconds to boot up. 2) PQ. I currently have the S770 and regardless what many people have said, I still think the PQ and AQ on the S770 is superior to the S570. The new S580, to me eyes, has the same PQ as the S570 and I tought it looked a little soft when compared to the S770. I still think the S580 have nice PQ, just not as good as the S770. But that's just my opinion.
Hope this help.