Positives:
_The Battery life is great, have the device since the purchase (2 months?) With the first batteries in operation! Better than Apple's own products.
_very easily and accordingly also portable
Negatives:
_The Key press is a little stiff, at the beginning it was uncomfortable for me, now I'm used to it. But for the finger joints, it is certainly not as good
_wegen said frequent accidents at the keyboard I have also bought a silicone pad. Unfortunately, the buttons are at the bottom right (cmd, opt, arrow keys) 1-2mm from the original Apple layout shifted, so that the pad does not fit properly. It will still work, but the key press worse and the problem could have been avoided by also shifted by 2mm arrangement.
_The Esc key is to activate only on Fn. I feel regularly as annoying.
Overall, the keyboard is good for the low price, but the layout could be improved little things. Better / slightly more common suspension systems you get then probably for a few euros more.