I am very happy with these mugs. I’m Scottish, so true to my Heritage, I continually have a cup of Tea in my handor on cup warmer wherever I am in the house. I like the 17 oz cup size  the sturdiness of the cups. Furthermore, the upper  lower lip on my left side is numb — so I need a thinner lip on a cup so I don’t have “missed my lip” accidents.  Others may not like this as they may be more fragile, but a cup of Tea should really be enjoyed in a fine porcelain tea cup. This isn’t that, but it’s a nice 
compromise.