Ceramic thermos mug is well made and keeps coffee hot. The only negative for me is that in the winter when you want that warm, comforting feeling on your hands while you sip your coffee, you will not get that with this mug.

Drinking coffee with this thermos enhances the enjoyment. Easy to sip from, the thin lip is really nice. Pros:-retains heat well (pre-heating is a must)-no off flavors.

"it works with the standard setup. This one is the best i have had. Also fellow is just great at the products they make. Blows my mind.

Cleans easily. The ceramic coating does a decent job at preventing odors and acidic coating and residues. The mug is super easy to clean and you can take the sealing rings off so that you can clean them as well.

Leak proof. The twist seal cap is a great addition for constant temperatures and reducing leakage.

Interior of the lid is a faux stainless steel plastic. The threading is plastic. Does not keep liquid warm. Leaks a lot even when lid is tightened all the way.