Rikki, the midi to style converter IS much improved. Conversions are very smooth and seem to have better intros, endings, fills, and better choice of sounds. On most of them though, I do changes the sounds from GM to Korg Factory sounds in the style parts. I'm finding it quite useful, although in truth I don't use many "Song Styles". That is what they are of course, tailored to a certain song.
It's interesting that a Backing Sequence is created too, so you can opt to use that and be able to use both hands playing the keyboard without changing variations manually.