I was so happy to find this insulated Keurig travel mug for my Keurig coffee maker. I've had it for 5 days now & am very disappointed with it. 
     It looks great & is a good size for my morning coffee. 
     I just does not keep my coffee hot!! Just a half hour later my coffee is considerable cooler.  I was trying to stop using a regular ceramic mug that I had to keep reheating.  Maybe this one is defective. 
     I hope Keurig reaches out to me. I've been using their machine since they 1st came out.