It arrived today. The number keys, and thus important keys like ! and @, are in the wrong places, and (this one is on me, I should have looked before buying) it is also lacking an ESC key, which is largely the point for me of buying another keyboard.
I have the iPad Pro with keyboard cover and I keep it in my bag most of the time even when I don't have a laptop, so that's the standard I'm trying to beat. It would be nice to have something I could pair to my phone (the largest phone Apple sells) to use a terminal when on the go, but I guess I'll just keep carrying my handbag with iPad for now. I hear Apple is going to improve the iPad Pro's keyboard this year.
Oh well.
I like its compact design (it fits in a pocket), and it's very satisfying to fold/unfold :] That said, I don't use it that often because I find smartphone screen sizes too small.