Purchased one for my husband and one for myself and cannot rate highly enough! The ceramic lining is GENIUS!! I have been searching and searching for a reuscup that isnt easily breakable like glass or pure ceramic, doesnt have a gross taste like the metal reusable ones do. The ceramic lining doesnt interfere with the taste of either coffee or water and the silicon lid also has zero taste or smell. Best reusable cup ever. We are both absolutely stoaked and cant recommend enough!