Bests & Worsts Reviews from Amazon

I'll begin with the good points, and then get to the warning. These Breville Smart Ovens are stunningly beautiful, and are super intuitive, and the cooking results are phenomenal. Nuf said on the good side: Breville has now sent me their 3rd Smart Oven, trying to get me a working one. (So far so good on unit #3... we'll see how it goes.) The problem seems to be a batch of faulty motherboards which can't withstand the heat of a full cooking cycle. The first two BOV845 which I received (new, not refurbished) toasted great, and re-heated great. But when I put each through a 40-minute bake, each in turn displayed the fatal error code E05, and shut down. Breville's instruction booklet directs you to unplug the oven immediately and return it for service. Note: this problem is not limited to the BOV845; I have read Amazon reviews of the compact version too, returning the same fatal error code. So I boxed up and returned my first unit, and Breville sent a second. And I boxed up and returned that second oven for the same E05 error code defect, and sent it back. But I have heard the conventional definition of insanity... and wanted out of this loop of boxing and returning BOV845 ovens. Williams Sonoma offers a Smart Oven Air Fryer (please know, this is NOT the same as the Smart Oven Air-- the "Air" is a much larger oven which will not fit on many countertops). The Smart Oven Air Fryer is even more beautiful than the BOV845, with chrome trim around its window, and a 1-piece looking, brushed stainless handle. It retails for $70 more than I paid for my BOV845, but Sonoma gives you a discount when you open their credit card, which made the price even. Why did I want to try this other unit? Because with the addition of the air fry feature, I was most certainly dealing with a slightly different motherboard. And I am banking that the E05 fault is a Chinese manufacturing defect, and not a design defect [eg. insufficient insulation]; thus the flaw would be (hopefully) limited to the BOV845 motherboards. Well, I've put this new Smart Oven Air Fryer BOV900 through a few 40-minute cook cycles now, without a problem. It's re-heating and toasting like a champ too. Like I said, we'll see if that lasts. Meantime, these 845s are great when they work. If you don't mind boxing up a dud or two before you get a working one, go for it. Breville, for their part, has responsive customer support, even through these challenging Covid times. They replaced the 1st unit, and refunded the 2nd unit, but refused to upgrade me to get away from these faulty motherboards. They even pushed their theory that my home outlet was at fault. Since that wall outlet is now servicing the BOV900 flawlessly (and served the predecessor Krups quartz oven flawlessly for 6 years as well), their theory is junk. Breville also refused to refund the aftermarket Amazon warranty I purchased alongside this BOV845. So in addition to all my re-boxing efforts, and my time without a working oven, I'm out another 20 bucks thanks to Breville. So I'm not saying buyer look elsewhere, since I find these ovens so desirable. But definitely, buyer beware.