Also, there are no adjustable angles: the iPad Air's angle when in the keyboard cover works fine for me during lap typing and on a desk, but the Belkin case can adjust to three angles. And, of course, this Logitech cover doesn't protect your iPad's back; it's just a cover for the front. Some people have bareback iPads, but I prefer a case or a sleeve.
And yet, I still love this accessory. Why? Because it's thinner than using a full keyboard case, it attaches cleanly, it feels rock-solid, and has a great keyboard. No keys are weirdly compressed, except for a few right-side punctuation keys. Some iOS-specific commands are folded into the number keys, or cleverly integrated into the keyboard (cut and paste, for instance, require pressing Fn-X and Fn-V, similarly to on a regular laptop). The matte keys have solid travel and feel comfortable, and have excellent response. And, I write quickly when using it -- this whole review was written on it, and it felt great to use. After all, that's why you buy a keyboard in the first place.
The cover still charges via Micro-USB, and has an included cable. To set up Bluetooth pairing, you press a small button on the side next to the power switch.
So there you have it: the Ultrathin Keyboard Cover may not be quite the uncontested iPad accessory it once was, but it remains a top pick for me. The only regret I have is that this product only serves and fits the iPad Air, whereas the previous model fit the iPad 2, 3, and 4. At $99.99, that might be a little hard to swallow.