Fiction

We also have linked our accounts through Amazon Household, so they are available to me, too.

It is limited to 10 at a time--you do need to release books when you're done with them. The selection of books available is eclectic, though extensive. Both good and bad self-published things, but also a variety of standard publishing house items. For example, as of this summer, all of Barry Eisner's John Rain books were available on unlimited.

As for whether it's worth it, your situation will decide. My wife doesn't get out of the house much, so for her it is: she reads about five books a week. I use the library and read less (only a couple of books a week), so it wouldn't be worth it for me if she didn't have it.