I think Roland tested the market with this one and they will probably be releasing an arranger higher up on the scale based on this first atempt. Because E-A7 is in many ways a first of it's kind in Roland arsenal.
But the keybed... to me, it is close to atrocious. It has virtually zero feedback in playing anything close to piano style. I am amazed how those guys on the YouTube can play piano at all on it.
Piano sound itself is rather nice though.
I was considering one just recently and I just could not get over the feel of the keys. And the fact they are so small - but this is secondary. The future could be good if Roland will improve what they did well with this one and change what is wrong.