Product review (3 stars): best replacement I can find, but wish it was stronger
I have bought 2 of these and am going to order a third one now, if that tells you anything.  I give it 5 stars for being as good as the one that came in my Kitchenaid dishwasher if not better, but 3 for still not being good enough that it can handle the heat  and not have the bottom break out.  I've had one last for over a year and the one I bought for my mom only lasted 6 months.  I think her DW is a Kenmore.  I do like that it is half the price of replacing it with the Kitchenaid one.  One trick I have found to make it last a bit longer is to take the top cover off and place it underneath the basket in your dishwasher.  That gives it a little bit more distance between it and the elements and it also helps for when you do get holes in the bottom to keep things inside.