(+) Great for the size of my hand, but a small hand may find it a little big. As for me, the rest position is nice.
(+) In use, the position of the arm and hand is much more natural. It avoids twisting of the wrist and straining the back. But the position is not totally vertical (with a slightly inclined mousepad, within 30 °, it should be even better).
(+) The adjustment period is immediate.
(+) The mouse is both stable and lightweight, and it slides easily. Several sensitivity settings can limit the displacement amplitude.
(-) The manufacturing quality is poor, more like a mouse super market to 10 euros. It is very, very below Logitech, Apple, Microsoft ... In short, this product deserves to be 50% cheaper.
(-) The scroll wheel is not very accurate.
(-) No Native OS X drivers to customize the buttons, but the right and left click and the scroll wheel will run natively. However, since most of the time we inadvertently activates the bottom button by moving the mouse, it's not worse than he does not. Shareware to customize all the buttons of the mouse on OS X, but considering the price the manufacturer could deliver with.
(-) Subjective: The return to the buttons gives the impression to return back ten years compared to the touchpad of the last Apple mouse.
Appraisal:
3/5 because of the poor quality workmanship. The brand clearly plays its tariffs on ergonomics and lack of competition, not on quality. I doubt that the mouse takes over 6 months / 1 year maximum in normal use, even being careful.
That said, the comfort seems much better than normal mice, and that's the most important. With good build quality, it was a 5/5.
UPDATE: I increase of a star, but comfort is really better than with a traditional mouse.
UPDATE 2: After three years and sustained use, comfort is still excellent and mouse, to my surprise, still works. While the glossy coating is worn in places, the silver paint on a touch disappeared and left a trace of black plastic, but other than these cosmetic defects, the hardware running smoothly. I spend 5/5 of honesty with the product, although the cosmetic appearance a little disappointing, it holds up. An adviser to mice without hesitation.
