While I can't speak for point number one, I have not come across any special "issues" with it except for, as is not unusual for something of this age, the caps going bad. Plan on replacing those.
As far as harshness, mine is almost, and I hate to use the term, "tube-like" in sound. Very smooth. Very easy to listen to. Mine has been throughly overhauled, but not substantially modified.
Erik