I have a DA 60 in a Great Plains P-40. I just finished the airframe and the weather turned to crap so I haven't flown it. I don't except any issues. My son has been flying a Carden Extra 300 with an EME 60. The engine runs great and turns the same prop I intend to turn on the DA. I would have no issue buying an EME. Now we have had no issues with the EME so I can't discuss service or parts.