Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Melitta Mill and Brew

This coffee maker makes delicious coffee, grinds the beans immediately before brewing and is easy to clean, but the heating element only remains on for 1 hour. My husband leaves for work very early in the morning and by the time I get up at 6:45 the machine has already turned off. I have been using Cuisinart Grind & Brew machines for many years and they make wonderful coffee, but they are not fun to clean, they cost twice as much as the Melitta and they break down frequently. However, they have the option to incerase warming time for 1-4 hours after brewing. If Melitta could increase the warming time it would be perfect!!