Chump6784. Mine is 5 years old now and I have had it for nearly 4.
All I have done is 1 piston and the usual bearings, sprokets etc. Bike has done nearly 200hrs ?. I have an hour meter but havn't looked at it for a year.
Probably due for another ring.
Mechanically as reliable as anything, I have never had an issue. The rings wont last as long as a KTM or GG as they have a very large exhaust port and only a single ring. I can live with that just to have something a little different.
I would hold off on the Husky as the 300 is getting a bit long in the tooth now but I hear Husky has a new range of smokers for 2013. Although I wouldn't mind a 144 to play on.
Your comment about your mates 300 pulling out of corners like a 4 stroke is true.
There is a reason 300's are called 3 strokes.