I forgive mouse 4 star and would only partially recommend it. The reason is due to the ergonomics and the touch of a button. The mouse can only be moved with the thumb and ring finger because of the size and the design. The palm of the hand thus remains always in the air and has no contact with the mouse, resulting in a short time to cramps or pain in the hand. The standard size mouse as used on desktop PCs and in everyday office life is much more pleasant to use, because the hand can rest on the mouse. This should all be aware of before buying.
The workmanship and quality of materials is good. The mouse is not detected directly from my Sony Vaio notebook without having to make settings in advance. I'm satisfied but not happy! It is small (there are smaller!) And stylish, but not handy!
I'll keep this because I like it and goes well with my notebook, the touchpad will be used more frequently due to the mentioned points, although handling the mouse is generally comfortable.