I bought this coffee pot about 2 years ago, and loved the 4 hour warming feature, as the previous one was only 2 hours.  However, we woke up one morning to only Luke warm coffee even though the warmer was still on.  Next morning would not brew only beep.  I went back to the store and bought a second one thinking this one would certainly last and be better.  NOPE, 3 months later here we are again, same exact thing.  EXTREMELY Disappointed, because I have always used Mr Coffee.  I will be changing brands at this point.