i'm happy with mine.  the only issue i can think of is, in certain scenarios, it is hard to start.  starting from cold, it will fire on a cpl pulls.  after running and i shut it off for 5 mins or so, starts on 1 pull.  but if, after running it, i let it sit for 20-30 mins, it doesn't want to start again.  takes a cpl of 'purge carb', pull a cpl times, 'purge carb', pull a cpl times sessions to get it to go.