The E80 has a lot of the G70 styles, but (and again from memory) there are about 80 that are only on the E80.
Some styles load up and play fine , and in fact sound better than on the G70. But many do not. I found the instrument tracks to be mostly okay, needed patch adjusting sometimes, but for the most part okay.
It's the drums that create the problems. There are not the same kits on the Gw8 (or the G70 for that matter) that are on the E80. OR they are the same but Roland haev them re-mapped slightly..When you get yours and load up some styles you will understand.
The other annoying thing is there is no way you can set a "startup" performance. It is hard-wired to load up the first factory performance everytime you switch it on, which is ,,,,,"Hungarian 8 Beat" I think?
I did send an email to Roland US techs about this but got no response about setting a user default performance.
This CAN be done on the G70 and E80.
Dennis