Uses its own control panel area (I prefer if plugins only do this if they are quite important).
Requires API key for Google fonts. This is not hard to do. It's like… 3 steps.
Shows samples of all fonts, and you can search on the fonts, as well as sort alphabetically, or by popularity, etc.
This would be terrific, only I could not find how to get the selectors to work. In other words, for some reason, the data would not save to activate the selectors.
Also, I am not sure if it lets you see all the different font variants, which would be helpful.