I have been using this travel mug every day to bring my coffee to work. It is a great size and holds the heat in really well, while the outside stays nice and cool thanks to the double walls. The rubber grip around the middle is a nice touch to easily hold it, and the bottom also is made of rubber so it doesn't make any clanking when I put it down, and also stops it from falling over. The top has a great seal and is easy to drink from.