The best. But it can have carburettor issues if you're unlucky. Mine has a Zama S61D, one of the better ones but it still has issues.
The problems tend to happen to the models fitted with an accelerator pump. The best solution is to fit a carb from an older run. The Zama C1Q-S32 (Stihl part number 1129 120 0650) is the golden egg.
This is the carb without an accelerator pump (so very marginally slower on the trigger response) as is the one that 'just works'.
I got a couple on banggood.com (Chinese copies of a Chinese carb ) for less than the price of a carb gasket kit and they work perfectly!