Greetings fellow addicts,

If service is at all important to you, and unless you think you won't ever have a engine problem (no one does on a brand new engine), the get the DA-50 without a doubt.
All are fine engines, clearly.
But DA has the best service of any of the above companies, hands down.

I just ordered mine last week and they treated me like I was the only customer they ever had.
I have never been treated that special in all my hobby purchases, combined.
Felt real good, too.
And since then I haven't wondered once "did I make the right purchase"?
It pinched a wee bit, the few extra bucks, for sure.
But just telling all my flying buddys, their overall response was YOU DOG!
I liked that.
You will, too.