Aesthetics are great if you have apple space grey stuff (or other kit with similar colour) and the aluminium is quite thin but appears solid enough. For functionality, like a lot of the feedback from other sites, it is quite small or "low", meaning it could mean your hand will get tired easily. Functionality, the textured roller wheel made from aluminium is solid, however for Windows 10, there appears to be no setting for any directional change for scrolling - is only "one-way" (haven't tried this with my Mac) - this is opposite to apple magic mouse 2 which is changeable.