I have used a 6" Craftsman jointer for more years than I care to remember. I recently bought a Grizzly 0490, that is the DJ-20 clone. There were some issues with the first shipment, mine included, with the struts for the motor support getting damaged in shipment. Grizzly has replaced my stand and some other stands around the country. It is a good jointer. Is the DJ-20 twice as good? I don't think so. In fact the 0490 has a better placed on/off switch location than the DJ-20. I would not hesitate in recommending the Grizzly 0490 to anyone looking for a 8" jointer.
Howard