Hi Donny,
I have played the G70 several months ago, and I must say, I believe its pianos were a little more robust(they didn't have a G70 for comparison).
The key feel was far better on the G70 as well, although the E-60 felt very nice.
Haven't seen the E-80 here yet, although I'm sure they'll be in the local Music Stop store before too long.
I listened through a pair of high quality headphones as well as through the onboard speakers, which were quite good.
In either case, the pianos were definitely thinner around middle "C", and the short decay sounded very unnatural on the higher keys.
The organs were typically Roland....warm and rich sounding, very Hammond-like, and utilizing a fairly realistic Leslie simulation (I liked it better than the one on the 3k).
The reach to the bender is a stretch because of the longer keyboard, and not something I would like, although I guess you could get used to it.
The ergonomics were fine, and having owned several Rolands, it was easy to navigate around on it...I liked the feature of the Bass Inversion having its own dedicated panel button.
I didn't like the small touch screen, but again, it could be something one could get used to.
I'd say that it would be a tad awkward to move, especially in a road case...30 lbs is a bit on the heavy side and it is quite big.
It's unfortunate I didn't have more time to spend with it...it seems like a nice instrument(except for the pianos, which are subjective).
All the best,
Ian
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Yamaha Tyros4, Yamaha MS-60S Powered Monitors(2), Yamaha CS-01, Yamaha TQ-5, Yamaha PSR-S775.