Not entirely silent; rough edge design, otherwise fine!
Not entirely 'silent' but definitely better than most mouses in that respect - it is more of a muffled click, which is fine for me. I would have rated it much higher, a four or even five if it wasn't for one key issue: comfort. For some strange reason it has been designed with a rough edge side with large grooves meaning that it not very comfortable - even uncomfortable at times. I can see no reason for this design, as there is no need to 'grip' a mouse. Maybe someone else will like this particular design quirk but for me it knocks one star off.