Just got mine Monday and hooked it up in about 3 hrs. Have a Samsung DLP 50" TV with only one HDMI, and all my devices are HDMI so this worked out well. Have a FiOS box, XBox (old version with Mad Catz HDMI adapter), PS3, and an LG BD360 3D Bluray. I wanted to get my system up to snuff for a 3DTV I hope to buy later this year, probably the LG 55LW6500. My old receiver was a Yamaha, that had no HDMI, but it was a nice 6.1 system. This was a great upgrade for under $200, and so far its working well with my Onkyo speakers. I only have 6 speakers plus a Subwoofer, but I also had an extra Yamaha Subwoofer that I added into the mix for even stronger low level effects. The instructions and the Setup menu are a complete joke, but it was the same in my old Yamaha system. Once you figure it out and set it the way you want, you never touch them again anyway. I did successfully do the firmware upgrade (thanks to getting the file link here), and once I reset my other devices to do sound out of the HDMI everything seems to work well together. I had seen some folks having issues with the Harmony One remote, but those must have been fixed because I was able to set that up in 20 minutes to work with the system. I would have liked some additional features like up converting, and non-HDMI pass trough, but since everything I have now is HDMI anyway it met my needs. For the price I can't complain and I like that it does all the switching. The real test will be if it works well with the 3DTV once I get it. My only complaint is the IPOD port is great to have, but there is no song navigation at all (which others have complained about). It just lets you skip and it seems to be in alphabetical order.
I have one question that is just not clear to me if anyone knows. On my FiOS box, most channels in HD seem to indicate surround sound, but when I choose the ProLogic or Neo6 choices with the receiver it just says NOT SUPPORTED. I would want to use the Neo6 in certain situations for just regular shows, and I don't know why it doesn't seem to allow that. I may have to double check the FiOS box options, I may have missed something. Thanks for all the help in this forum, I knew exactly what I was getting, and for the money so far it was worth it.