I don't much care where the stuff comes from as long as it does what I want/need it to do and the price is right. The DMX741s I've used have been just as good as the Corotor with Norsats that they replaced.
I do, however, refuse to buy anything from Leomall or Mr. savingsmall because when I did have a problem with the first Vbox X I bought from them they didn't know me!