Great little bottle for going out. Keeps my hot water hot for at least 8 hours; though I do have somewhat of a sensitivity mouth. For those that can drink really hot liquids without burning your mouth, it'll probably be like 6 hours. And if you open the cap a lot, it'll be even less. Washing the mouth piece is easy since you can take it apart (see pictures). Also a tip that I accidentally learned, if you open the lid all the way back, it "clicks" into place so that it doesn't fall on your nose when drinking out of it.

Haven't tried for cold beverages. For hot beverages, keeps them HOT, for as long as it is closed. Be careful if you make a hot drink to sip before leaving open for a bit. It WILL be hot. Top notch materials. Like that they removed the liner on this version. Top hinge locks in place so that you don't have lid come down when taking sips. And flow from the internal spout is great, despite thoughts that it may dribble in me prior to purchasing. Love the compact size. It takes up no room in a bag, and lock mechanism ensures that it won't open by mistake in your bag. If you drink small amounts of coffee/tea, this is your best option. Always trust Zojirushi for top quality products. They are definitely worth the price. This is an item that will last long if properly cared for.

Love it. Keep hot for hours.

Great, slick water bottle that keeps the content hot for pretty much the entire day, compared to some thermos that only lasts 4 hours or so.

Excellent. Leak proof, can throw it in my bag and forget about it. Coffee is still hot a day later. My new favourite mug.

This is for my daughter. She likes it.