I tried the DGX670 for a couple of weeks. Yamaha have changed the OS on DGX670 compared to the way Yamaha keyboards work so even with simple options like style editing you have to go through the MENU every time.
If I wanted to alter the volume of style parts I could only change the style volume completely although the owners manual states style editing is normal upto the Yamaha standard...Perhaps I was missing something.
Style editing can only be saved as a Registration and not as a user style ?.

Can we have feedback from DGX670 owners please or perhaps DGX owners don't do any editing ?.

Finally the positive things are PRICE & LOOKS & SOUNDS are good.

Appreciate your comments.