I purchased an Integra DTR 40.1 in December 2009 from Myer Emco (DC area retailer - recently went out of business). I did consider the Onkyo recievers but I did not like the front fold down panel or the green display. I only needed 5.1 so for around $900 the DTR 40.1 seemed to fit my needs.
I am running B&W speakers (XT2s front, FPM5 center, ASW608 sub, M1s rear).
I upgraded to the Integra from an older Onkyo receiver. The DTR 40.1 sounds great playing music and watching DVD movies (no blu ray yet). I also use it to play internet radio. The unit generates some heat, but not more than I would expect for a reciever.
I have run into one problem. Every two or three weeks the receiver will mysteriously stop making sound for all sources. I have tried turning the unit off and on to reset and still no sound. I have to unplug the receiver for 1 second and plug it back in...then it works fine for serveral more weeks. I have upgraded the firmware via the internet connection.
I was going to take it back to Myer Emco for service or exhange but they went out of business. Of course the unit is under warranty but I haven't done anything about it yet. My fear is that I will send it to the Onkyo/Integra facility, they will keep it for months and then will find nothing wrong with it.