First, let me say this isn't a big coffee mug. Now, here is what to love about it. It's adorable and well-made. The fish where you put your tea is solidly put together and nothing leaks out.
The cup lid turns so you see the cute side no matter if you are left (like me) or right handed. Everything is sealed and the cup portion is glass.
I think it makes a darling gift for someone or yourself. I have it displayed on my counter. Recommend.