I'm very confused. This is the font that matches the Google branding, and that they started using as a UX font in Gmail, Docs, etc.
I hate it in UX because it's so "geometric" -- works well for a logo, but not body text, so it's just a bizarre choice for UX. Unlike Roboto which continues to be great for that. (Google Sans is fine as display text though -- headings, logo, etc.)
But my understanding was that Google wanted to differentiate its first-party apps from other Android apps with a proprietary Google font.
But now they're opening that font up for everyone to use, so Google's apps will no longer look uniquely Google-branded.
I'm so confused what the heck is going on over there in Mountain View.