[mvellandi]

Mostly, no benefit over Gutenberg.

Though you could compare such sites based on: - individual title design (cover, ebook formatting/layout) - curation of titles and authors based on genre, literary period, country, and other factors

Legally, books are freely available where public domain status for a book is recognized. In the U.S., that is practically anything published before 1925. In most other countries, it's 70 years after the author or translator's death.

Gutenberg decided to block access to its main site in Germany (where I am), to resolve copyright claims.