Summary: The receiver/amp is very powerful and so is the subwoofer but speakers are too small and do not have good frequency response in midrange. I was upgrading from my Panasonic HTS because it did not have good frequency response in midrange and lacked the richness I needed. Bose did not provide that for me from hearing them so I figured I'd go for Yamaha since they are rooted in musical instruments.
Summary: I have had a previous model of this one for 2 years it still sounds awesome and I have had no problems with it. I just got through setting up this model for my brother and its basically the same one I have. Easy to set up and sounds awesome crystal clear with deep clean bass. One thing to note that hasn't changed since I bought mine and is hard to find unless you have done a bunch of research is that the receiver can run 6 or 8ohm speakers.