I've had the Aroma Air-Pump Pot for amonth or so and find it efficientand suitable to my needs.It stays hot for 24 hrs. when I need it for that length of time for Friday night till Saturday night and it is large enough at any other time to serve the number of guests we invite without being overly bulky.Time will tell how long it lasts, but for right now, I would highly recommend this product. F. Green