First time ordering a waifu cup and I've not been disappointed. Good seals on the lid and the ears rock.
I got this for a gift for a friend of mine and they loved it. Them and my friends like these cups so much that I decided to try some of the drink flavors and I was surprised by how good they are. Usually these things have a weird after taste but not these.
Taste is pretty good, does help me sleep a little bit, the only reason it's not 5 stars is that some parts of the mix doesn't dissolve fully and can leave little pebbles of the mix. Really like that its not habit forming.
Being very much a fan of cats and catgirls I absolutely had to have this and glad I ordered it. The material quality is great as always but the ears are ears are impressively robust and are quite conversation starter when refilling my water among coworkers.