I've been using Roland guitar synth gear for going on35 yrs. While not perfect I play in aa cover band and can cover quite a few string, piano, harmonica and horn parts on probably 15 songs a night. I have a FTP but have not started using it yet.
I've been in numerous bands where I used the Roland gear, too. It works really well for many sounds, especially when playing live. I think the OP is suggesting a "next generation" product, that goes beyond Roland/Line 6/Fishman.