I had the first generation Brydge keyboard for my iPad Pro and I loved it. But owning the Apple Magic Keyboard, I haven't used it at all in over a year. It still works better on my lap than the Apple keyboard.
The function row does look interesting on this, but it still feels like a risk compared to the Apple Keyboards. Specifically because of the trackpad. The Apple trackpad is small, but I never notice the size. It simply always feels useful.
I do think that the new magnetic method of attaching the keyboard is a huge improvement.