Summary: Pros: works out of the box, xlnt THX audio, xlnt separation, xlnt surround. Cons: Setup sucks. The owners manual sucks as its hard to follow. Heck, I have reviewed and proofed hundreds of technical manuals over my career and this one really sucks. You get to step 6 out of 10 and the setting does not exist! Lots of fumbling around with hits & misses. Well step 6 in the last chapter is now step 3 two chapters following.
Summary: If you have 4 ohm speakers, stay away from this lightweight. Although it is advertised as having "low-impedance drive capability" the Yamaha rep told me that this unit is not stable at 4 ohms. I guess Yamaha needs to learn the meaning of low impedance.