Such a waste not to split those H and T keys and put some other useful keys there. Also, the extra wide leftmost column is stupidly wasteful (backtick should be the same width as backslash).
Seems like all the randomly different width keys could get confusing.
I wonder if one of the spacebars can be reassigned a different function (e.g. backwards delete). If not, too bad. In any event, the spacebars would be better if narrowed by at least 1u, so the modifier keys could be brought into an easier-to-reach position. There’s no reason for a spacebar to extend left beyond the edge of the 'C' or right beyond the edge of the 'M', and even that is probably .5u more than strictly necessary on each side.
Finally, the 6 key is really damn far out there.
The basic functional goals (tiny, flat, folding) seem reasonable enough, but they’ve let themselves be guided by really stupid aesthetic constraints IMO, and the result is a thing that ends up not only looking funny with all the weird inconsistent sizes, but also being functionally worse.
Kinda interesting that the modifier legends are Mac first and Windows second (except for the 'Enter' key). Not what I’d expect from Microsoft. All the legend alignment is totally mystifying to me. Doesn’t Microsoft have some graphic designers on staff?