Just got the Sony HT-7200DH hooked up to my Samsung LN52A550 LCD. I have the Samsung BD-P1500 Blu-ray player and my Comcast HD cable box connected via HDMI. When the fourth HDMI cable arrives from monoprice, I'll also hook up the up-scaling DVD player that came with the Sony.
The Sony HTiB sounds terriffic. The speakers are substantial, and the woofer is more than adequate to fill our small home theater. This is my first real surround sound system, and it's simply fantastic. Watched the Lambo and tunnel scenes from the Dark Knight -- excellent sound, big explosions, and more than loud enough (very loud at ~40).
One thing I will say is that the HDMI-CEC doesn't work exactly right. Before we bought the HT-7200DH, we had the Samsung HT-Z410 for a couple weeks (the salesman sold it to me when I bought the TV). Anynet+ is pretty slick. You could power-on the receiver from the TV remote, control the receiver volume, control the BD player, and power everything off with one click. Unfortunately, the TV does not "see" the Sony receiver in the same way (though it does see the BD player). This, despite the fact that this receiver allegedly recognizes HDMI-CEC signals (through Sony's Bravia Theatre Sync). This
page says it will work, however, I cannot power-on or control the volume with the TV remote. It will, however, power-down with the TV power button (so there's some communication there). I can still control the BD player, but it doesn't all work together as well.
I really wanted Anynet+ to work, so I thought a lot about getting the Samsung HT-AS720. However, it only had two HDMI ins and no component ins. I wanted room to grow, and the Sony strikes me as more of a "real" receiver with three HDMI ins, three component ins, and many other options (as well as Dolby Cinema sound and auto-calibration). Furthermore, Anynet+ malfunctions when you connect a STB to the HT-AS720 (see the posts in the HT-AS720 thread), so I would have had to run the cable box through the TV with the digital audio in to the receiver (i.e., to watch regular TV, I was going to have to use three remotes anyway (TV, STB, and receiver)). As it stands, I'll probably just get a Harmony remote. I'll also add that when we had the HT-Z410, there were times when Anynet+ wouldn't work. A couple times (in only two weeks), I had to power-cycle the receiver just to get the TV to see it. Seems like they're still working out the bugs with HDMI-CEC. Maybe there will be a firmware upgrade for my TV that will make it play nice with the Sony.
So, all of that said, the Sony is a really great receiver. The speakers are robust and do a really good job. I highly recommend this HTiB. Feel free to ask me any questions. I got a lot out of this forum before I made the purchase. Hopefully, I can help others. For the money, I don't think anything else comes close.