I have not, but I've had one like this for probably 10 years or so:
http://www.amazon.com/Sunpentown-Sup.../dp/B0009EXXK6

My parents have had one like that, I dunno, forever. They are on their second one because they broke the glass on the first one. I think they've probably been using it for 20 years, and that's a conservative estimate.

I love it for heating up leftovers or baking smaller amounts (although I've baked a whole chicken in it, but it's shape doesn't lend itself well to some things, like enchiladas). Doesn't heat up the kitchen like a full sized oven and crispy things reheat nicely. I don't even own a microwave anymore, I either use this or if I want to reheat something that should stay moist (like, I dunno, leftover rice or something) I put it in an oven-safe bowl & put the bowl in a pan over an inverted steamer basket & some water & cover with a lid. Works beautifully and tastes so much better than nuked food.

The only down side is it is hard to find pans that will fit in there. You can use aluminum foil, or I have a ceramic quiche pan that fits perfectly. You can just heat straight inside, but then you have to clean it every time (which I dislike doing).