It's funny, I see it and immediately feel it has too much spacing on that specimen page. On my laptop screen at its default presentation, it approaches where my brain starts to fixate on dissociated letters instead of words.

I've also experimented with custom fonts on my (Garmin) watch and found that taller and narrowly spaced characters seem to increase legibility for me. This is for mostly decimal data, and I want to read with very brief glances, in challenging viewing conditions, rather than linger to appreciate the graphemes.