Yuck, the monospace font feels too dense, and dislike the serifs.
The monospace font reminds me of the generic "Asian product manual font" - although the individual shapes are slightly different, it has a similar feeling to MS Mincho:
http://lists.w3.org/Archives/Public/www-archive/2013Jul/att-...
I found the proportional font really hard to read.
It's not as if Google can't do good typography:
https://fonts.google.com/about
So this seems like a rather self-indulgent and not wholly successful side project.
My favourite example and what I use daily, Office Code Pro Light: https://raw.githubusercontent.com/sjrmanning/darkokai/screen...