This is the 4th one I have purchase.  I buy these because I work in a heavy equipment all day long and I never have to worry about spilled coffee plus my coffee stays hot for about 6 hrs hot and and warm for about 9 hrs.  I take (2) two with me at 4am and at 5pm they are still warm.  Yes I savor my coffee.   Love Love Love the new lid for cleaning reasons.