I had a 1982 PE 250.
Fast and forgiving...easy to ride fast and quite reliable and more tractable then a full on motocross.
A great woods bike with tons of usable power!
It was in no way like one of those street legal "enduro's"...it would eat 'em for lunch...easily.
I also had a 1972 Yammy DT250...nice dual purpose ride for a young buck...but in no way in the same class as the PE.
But then again the PE was not street legal.