Their affiliation with Project Gutenberg does raise expectations however.
To see Hamlet, Peter Rabbit, and Beowulf on the same opening page is quite enticing.
This is not a free library in the self educated Andrew Carnegie mold, it currently costs US $8.95 per year to access more great reading than even a bibliophile like myself will ever read through - currently over a quarter million books.
Project Gutenberg is free, but also has less than twenty thousand books to download - when you are dependent on the generosity of strangers options are limited. The Project Gutenberg materials are selected for enduring quality - Peter Rabbit is probably not represented. They do have over two million e-books downloaded each month.
If Sherlock Holmes is on your "to read" list, a good place to look would be the World e_Book Library, at $8.95 a year the cost is equal to one used book - and you will be helping build the library for yourself and others. Even if you do not plan on reading these books, I'm sure a sign up would be appreciated.
Carnegie gave away great wealth to build libraries and schools around the world - a token gift to special projects is a great way to emulate a man that was once the world's richest man. Carnegie showed what power there is in private, self-directed learning.
The option is that some government bureaucrat will decide to build such a library. That will probably cost hundreds of dollars per person - every year - involuntarily.
Only voluntary actions have virtue.