I am not a live-performance musisician, so I can't vouch for the general durability or the RD, but it is built like a tank. 3 Roland was not terribly helpful with the torn membrane switch. Permanently fixing the problem would have required upgrading all of circuit cards and switches to the new design at significant cost. Straight forward and self-explanatory. No editing these effects, but that has never really hampered me.
Nice staple sounds.
Among the first convincing piano sounds. They are much better with a little reverb. Piano sound 3 really cuts through a mix, and E. Piano 1 is still a must for my playing. The keys do need to be fixed from time to time, but you get plenty of warning from the action. It won't just cut out on you.