This keyboard is very very thin and light, but typing on it is clicky and nice. There's a magnet on the keyboard that keeps the two halves closed when it's folded. It comes with a little cloth bag for carrying around. I'm definitely going to bring it with me when I'm not working from home so I can have an external keyboard to use with my laptop.
Connecting through Bluetooth was quick and easy. You just press a few buttons to turn on pairing mode and it pairs immediately. You can pair this keyboard to more than one device at a time and toggle between them, which is very nice.
I love the details on the keyboard. It's very clean and easy to read with the white keys, but it gives me little bursts of joy to see BT21 on it .
I worried that it would be hard to type on this keyboard given how thin it is, and it definitely is smaller than my full size keyboard, but the keys are surprisingly large and there is a decent amount of travel in the keys.
There is no backlight on the keys, but there is a little status light on the left hand side to show you if CAPS LOCK is on and if bluetooth is connected. There are quite a few Fn keys as well, which is very convenient.
The only issue I have with it is that it still charges through mico-USB. With everything moving to USB-C, this makes the keyboard seem very dated.