That review shares my sentiments of the S975 (and S970) that they are still fantastic keyboards and not too far away from the SX900, in other words, the stuff that they share sounds pretty much the same on both but where the SX900 shines is with it's newer stuff, whether that's worth the upgrade or not is up to you, but they are essentially the same keyboard really.

One thing that the S975 will probably always have exlusive are those audio styles, you can't extract the audio from them and I don't think they'll ever become a free download as if you search Yamaha's online store, to my suprise they are actually for sale at 37.50 for each category which is certainly a rip off I think. But I think because they are for sale possibly means they'll never be a free download, but I'd like tobe proven wrong!!