Product review (3 stars): Lasted about 2 1/2 years
So, when we bought our house it had the commercial line Jade gas oven. One of the ignitors was out, and we thought the oven just heated poorly, eventually the other one went out. Called found out the Maytag 12400035 was a replacement for it, ordered two. They installed fine, and worked well. The oven performs much better with both ignitors working!

Now, I'm writing this review almost 2 and a half years later. One has failed, I anticipate the other will fail sometime in the near future. 2 1/2 years is not great, hence the 3-stars... but I am buying them again, because they're not overly expensive. I'll buy 2 now, so I have a backup.