If I wasn't playing in a live band, where the G70's touchscreen is at a premium, I'd be on the BK-9 already, Fran. It honestly is a HUGE improvement over the G70 in most areas of sound and usability.
The action takes some getting used to, but it's no worse that Korg or Yamaha TOTL actions, and massively better than Yamaha's MOTL offerings.
And, if you are using styles, the synced audio loops can make some awesome Latin or modern loop music possible, truly quite a meeting of arranger ability and workstation sound...
I'm a believer, Fran. Sure, I miss the touch screen, but an iPad is in my near future, and then I'm cool..!
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An arranger is just a tool. What matters is what you build with it..!