Wife and I have had a Yoder YS640 since February 2012 and are very happy with it, no regrets. Often this model is referred to as built like a tank, it is. Made in the USA, 10 gauge steel cook chamber.
December 2017 we got a Blaz’n Grid Iron for its ability to cook low ‘n slow 4 grates of ribs for cook offs over the Yoder’s 2 grates, very impressed with the quality of the build. In comparison to the YS640 it has a larger cook chamber and hopper, center mounted burn pot is easily removable for dumping the burn pot but the grates and heat deflector still need to be removed to clean ash in the lower cook chamber. The pro rack system has well over double the square inch grate space than the Yoder with the second shelf option. So far happy with purchase. Made in the USA, 16 gauge steel cook chamber with strategically placed double wall construction.
In my opinion the sear kit in the Blaz’n is a disappointment and does not grill or sear with direct heat. We did not purchase it for the feature and will never try it as have plenty of grills for that. Yoder on the other hand has a very descent searing set up, just my opinion for direct grilling and searing.