Well over the last few years Ive heard the DA guys go on and on about their motors.
Ive owned ZDZs, Mvvs, Zenoah and Brisons and still do plus some weedwacker/chainsaws.

I recently got a new DA100 and I have to say that it has to be the easiest starting and running motor Ive seen. I still havent touched the needles from out the box .....yeah baby!!!!!!!