I've been checking out the "new" G70 styles on my 2 year old Roland KR7 intelligent piano. Some are the same as the styles already included in the internal styles of the KR7. Some are new and quite good sounding. Most are just average. Few made me sit up and take notice. (Could it be that the G70's memory size and voices would make for more smooth and professional-sounding style playback than when played on another Roland keyboard?)
In my opinion, it seems like Roland just doesn't have what it takes to create great, inspiring styles that make you want to just sit and play and get lost in the music the way Yamaha's styles do.

Tim