Good sturdy cup. easy enough to clean and size is roughly a large in most Sydney coffee shops. Mouth piece feels like standard non reuse able cup so a very familiar feeling when I'm drinking from it. A little disappointed it doesn't keep my coffee as long as I expected (hence 4stars) being double walled and considering it's hot as right now, can't imagine its going to be too good in winter. In saying that my hands are kept cool when holding the cup so it is doing its thing, big plus for me. Maybe my expectectations are a little high. Mrs commented that the cup is a little large and a bit harder to hold in her hand. Though she is quite fussy about these things and her hands are same size as mine and I don't notice.