I could not believe something at this price was so well built. The whole mug looks great and it keeps my coffee hot (not warm, hot!) For a good amount of time.The pouring lock works great and It Seems as if the cap is somehow hydrofobic Because almost no water gets stuck to it except for 1-2 drops. The cap is so very nicely sealed, but make surethat after you fill it up you turn it upside-down a bit, Because a few drips Might Be Still stuck in there, but that's it (almost stained some clothes Because of this).