I have purchased several mugs over the years, but this Proraso mug is the one I use most often. It is virtually indestructible. It is of the perfect size. It has the knob to hold secure while mixing the lather. And it has the ribs on the inside to help create the perfect lather. My lathering process is to swirl my brush on the soap for several seconds. Once I have enough soap, I transfer it to the Proraso mug and mix the lather. In very short order, I have created the perfect lather. In addition, in the time my shower is being redone, this mug has been perfect for rinsing my hair after being washed. Although I might continually look for the perfect razor, the perfect shave soap, my signature fragrance, and so forth, I cannot think of a better mug. Definitely, this is number one mug.