Are they like the other Kitchenaid, Whirpool, Maytag and Kenmore products that are all made by the same manufacturer? My current grill is a Kenmore, I figured it was a quality unit. It definitely was not.
I can not speak to Kenmore - a product made for Sears.
KitchenAid is owned by Whirlpool. As well as JennAir. My entire kitchen is KitchenAid (built in fridge, 2 drawer dishwasher, wine cooler, ice maker) or JennAir (stove and micro). (I posted pix on NCT and maybe here too). This is not Kenmore junk.
I would not consider a KitchenAid grill to be anything like a Kenmore. The three I've owned have been 100% stainless, except for the heat deflector plates. The rest of the grill are what I believe to be 304 Stainless. The finish on the welds is superb. The metal itself must be at least 0.010" thicker than anything else I've ever seen on a Weber. I keep mine outside 100% of the time, covered with a vinyl cover my wife made, when not in use.
Why have I had three grills you might ask? When I bought the place in Michigan, I bought a wpos "stainless" and metal "Commercial" grill at Home Depot. Don't remember what brand, but at the time, it was the best. Like I said, wpos and I gave it away. I bought a plain 3 burner 36" demo KitchenAid for $500.00. I had it for two years, but then while shopping for kitchen appliances, I spotted a 36" with a side burner and a seer burner. That's the one you see in the picture. I bought it for $750.00. I put my 1st one on craigslist, and within an hour, I had it sold to a Whirlpool engineer for $750.00! And I kept the rotissiere (sp!). I had it only a year, when I spotted the 36" with warming drawer and two side burners for $1200. I bought it, and sold sold the 2nd one for $1200.00 on craigslist, again, within a couple of hours. Kind a like 2-foot-itiss with boats. Hoping to get the mutha of all grills soon and sell my current one. The cheapest KitchenAid grill lists for something like $3,500, and the mutha-of-all-grills is in the $6,000 range.
These grills are not cheap junk; they are truly high quality tools.
I'll take a whole bunch of pics this weekend of my current one, hopefully indicating the quality. If Diamond has any out, I'll take pix of them too.