I'm currently in the process of designing a book cover. I'm intending to use Alegreya and Alegreya SC as the title and blurb faces.
Being cautious of free downloads off Google Web Fonts or Font Squirrel, I always try to go an obtain my copies of 'free' fonts from the foundries themselves (to confirm they actually are free and haven't been been pirated on the free sites).
I've found that Alegreya and Alegreya SC can't actually be downloaded from http://www.huertatipografica.com.ar/tipografias/alegreya/ejemplos.html.
Has anyone else had experience with these fonts, and can confirm that the licence does permit commercial use without any payments?