Summary: I purchased this in 2007. Six years later, and I still can't convince myself that anything new would be THAT much better except that in this day and age we're dealing with HDMI 1.3+ that this older receiver doesn't fully support.
Summary: The setup: Dish HD PVR-622, Toshiba HD-A2, and Sony PS3, all connected via HDMI. Output to a Panasonic PT-AX100 via HDMI. The AVR only has 2 HDMI inputs so I use an HDMI auto switcher between the HD-A2 and PS3. This AVR is used in a dedicated home theater room.
Summary: This one replaced my 8 year old HK AVR65. I use Definitive bipolar speakers (BP30 - BP10), Samsung 56' DLP TV, PS3 and European satellites along with this receiver. First of all the sound is amazing. So natural and well balanced.
Summary: At the current going prices where you can pick a unit up for around $825 from H/K refurb, or if you are very lucky even more cheaper from Fry's electronics, this unit is amazing. I am one of the lucky few who got the display unit from Fry's.
Summary: It comes with a microphone that is used to automatically calibrate your speaker settings. There are two steps. First connect the microphone to a camera tripod (not included) and place it in the center-most listening position. Follow the on-screen menu and the speakers are automatically set.
Summary: Great system, only grip is no TrueHD Dolby from what I can tell. More than enough power, the included remote is ok nothing great. I actually moved that to my living room and use the Harmony 1000 to control the reciever and other equipment.
Summary: I bought this refurbished from eBay store of Harman Audio with full 2 year warranty for just $810 shipped. I got the unit that looked and behaved like it is new. Unlike the other reviewer, I actually like the remote. I already had a Harmony H659. I like this one even better.
Summary: I purchased my Harmon Kardon about 3 months ago and I am honestly amazed. I have owned everything from packaged small home theaters to huge component surround sound systems - I previously owned a Sony 7000ES, which was a serious piece of equipment, this Harmon Kardon however is even better.