Its contents are generally practically perfect (tea, or coffee, or hot chocolate, or hot squash).
Its owner? Very much less so!
The other mugs I like are large, don’t taper, and hold approximately 2/3 pint of liquid. Closely followed by the ones which taper and hold 2/3 pint; but I’ve sent one cascading into smithereens on the bathroom floor twice (and had to replace it twice as a result, because it’s such a pretty mug), owing to lack of balance. I’ve stopped taking that one into the bathroom – flying mugs in the kitchen tend to bounce better, as the floor is rubber. Flying mugs in the bathroom are less fortunate, as the floor is mosaic.
All the best mugs are made of china.