I use the User Program feature a lot on my VA-7. Since I'm not very good yet on creating my own specific styles for certain songs, and no one seems to have them for sale for the specific songs, I combine a lot and store it in a slot. When I want to play a song, I touch the program and everything is done. I just need to keep track of which voices I use along the song. And I can use up to 8 variations per style. This entire thing goes well most of the time.
The only problem is, that the navigation of the VA-7 is quite irritating to use when something is going wrong. I always defended that a bit, but now I'm with you who did not like it. I hope the navigation on the follow-up version is much better with tons of buttons.
Sander