I also have a 525, and love it. I didn't even bother with the EZset, as I prefer manuel set up.

My old receiver is a Yamaha RX-V2090, loved that one, too.

Yamaha's are definitely brighter, but this is not a bad thing(it is not ear piercing highs). They are just two different approaches to sound reproduction. Listen to both, buyt he one you like.

My 525 was $500 shipped from Harman. I won one of their eBay auctions, it is a refurb, but I have had no problems.