Summary: I returned my STR-DA5300ES after a failed repair. Ultimate electronics was nice enough to replace the unit after 60days of going back and forth. It turns out that Sony made serious changes to the amplifier block. I have owned the 5400es for two months now and the difference is immediate.
Summary: This receiver has all of the same limitations are the STR-DA4400ES, so check my feedback on that one too. In most situations this receiver is not worth the extra $500.00 over the STR-DA4400ES Sony expects you to pay, but you can get it a lot cheaper then list price too.