The keep warm feature is pretty great. I've never done anything as crazy as a week, but the most I've gone is 7 hours and it was basically indistinguishable from freshly cooked!
Zojirushi Neuro Fuzzy rice cooker. So far I've only had it for ~2 months, but I really enjoy it. Although rice is a big part of my diet, I didn't know a "high-end" rice cooker existed until I wanted to upgrade the tiny 3-cup Imusa cooker I've had through college. I suppose I'll have to see if the thing stands the test of time (the reviews suggest it should!), but for now, the consistency and quality it provides has made me really happy.
The keep warm feature is pretty great. I've never done anything as crazy as a week, but the most I've gone is 7 hours and it was basically indistinguishable from freshly cooked!