Leaving aside the typeface itself, which I’m not much of a fan of, but hey, that’s a personal preference...
* All the glyphs for symbols and punctuation are terrible (small, inconsistent sizes and weights, weirdly aligned). Keyboard legend glyphs can’t just be pulled from a font intended for blocks of text, but need to be redrawn for the context.
* In particular, underscore is misaligned vertically, though this seems to be relatively common on keyboard legends
* The escape key is weirdly inconsistent with everything else.
* Print screen, scroll lock, and pause keys have really weird alignment.
* Backslash centered alignment is wrong and doesn’t match anything.
* Legends in all caps are in general unreadable, but if you’re going to use them they need at least slightly wider tracking.
* As other folks have mentioned, some of the abbreviations are totally unnecessary