I always wanted one of these, but never got around to buying one. I’ve used the Filco Ninja keyboard with a similar compact layout, which I enjoyed. The keyboard I use the most, however, is the Apple Extended Keyboard II. It requires an adapter to work with USB and doesn’t have media keys, but it’s just the most comfortable keyboard that I’ve ever used. It looks odd paired to my 2018 MacBook Pro, but I’m willing to forego the aesthetics for the comfort.
It looks interesting, but I'm no vim / emacs pro (I never got used to it) and need arrow keys.
At home (leisure, gaming, forums etc) I have a Filco Majestouch, tenkeyless version. At work I have the new apple wireless keyboard, also without numpad; I prefer a low profile for work.
It is ok, but, imo it could do with a smaller space bar and more thumb keys. Also, the wasted space on either side of the bottom row is irritating when it could easily have been used for keys. The uhk-60 looks a lot better in that regard, but unfortunately is well out of my price range.
