Absolutely adorable, this tumbler is awesome! Durable feeling and easy to clean, I have fallen completely in love. Artwork is cute, shape feels good in the hand, and is very pleasing to the eye.
It does leak a little if tipped on it's side, but not enough to cause spilling hazards.
Overall, I am very satisfied with my purchase. If you like chibi things and Sword Art Online, you'll like this.