Ok, so I get a thank you for purchasing and a reminder to leave a review while it's still fresh in my mind.  However, the reason I bought these is that I am seriously hoping they will last for a while - I have been through so many roasting tins that start off fine but deterioate way too quickly (the non stick comes off, they go rusty etc).  I have used these a few times now, and no problems - they are not as heavy as some, but certainly no signs of distortion.  The non-stick is effective, and for the most part I can just rinse and wipe them clean without needing to put them in the dishwasher (which I know is a bit harsher, but has to be done now and then). If someone can remind me in a year or two, I'll update you on how they have fared.  Let's hope I never have to use the lifetime warranty, but it is nice to know it is there.