Having had my 500A for two weeks, it's interesting to compare my thoughts with the review.
First of all, upgrading from a 5 year old Pioneer 434HDE, the 500A has far superior PQ out of the box, obviously that goes without saying. But for me that's the only thing in the new panel's favour.
I still have my 434 installed and comparing them both in normal day-to-day usage...the 500A is a definitely a case of a leap forward in PQ but two steps back in user-friendliness.
The build quality is poor as the front gloss bezel and rear panel bow and rattle to the touch.
The menu system is over-complicated and oft-used settings are buried an extra buttonpress or two deeper. Press the menu button on the 434 and your are instantly in the menu over-laid onto the screen and the Picture option listed at the top..where it should be and only one button press away.
Press the 500A menu button, the screen goes blank for a half-second and then the menu appears, with the Setup option listed at the bottom...so you have to press up, then Enter to bring up the Picture option!
The 500A media box may look nice with it's glossy finish but it's completely useless, as it can't be stacked vertically like the 434 media box and the glossy finish will scratch instantly if anything's stacked on top.
Why have Pioneer decided on form over function? Why remove functionality and make the panel more difficult to use?
I really can't agree with the review score for the ease of use/menus/remote/settings. There's absolutely no way that is Reference. Average at best.
To anybody considering a KRP-500A...don't believe the hype.