To be fair, he was pretty spot on about the NX sound system on the base models. The 8 speaker set up doesn't sound great. Its similiar to the 6 speaker setup in the base IS and CT but I guess we're all used to much better sound systems - for example, the 8 speaker setup in my RX300 was great, the 12 speaker in the 3IS and 4RX are top notch and the 15 speaker ML setup in the 3RX is good too.
But the main thing is, if you're happy with it, then thumbs up!