The first one I received had a broken key. The "Insert" key is stuck. I returned for a replacement. The second has no problems with the buttons. The keyboard connects easily to my MacBook Pro 2019 via Bluetooth and seems to work well. However, there's no way to see the battery level, which I think is a major downside. Apple Bluetooth devices show the charge level, why can't this device do the same? I'm using PCalc for MacOS and in PCalc I've successfully remapped the keys I wanted to change. The keyboard's aluminum top case is great. But the keys, while adequate, feel a little cheap and definitely aren't as reliable as the keys on my MacBook Pro or Magic Keyboard. At the same time everything seems to work, but it could be better.