I have been a member for two months, and have mixed feelings.
Be advised that the books, at least the ones I have received, are remainders and have the red remainder mark on the bottom.
They are also not recently published, but have been from one to several months old.
Still, the price is reasonable for what you get, and the main benefit is in discovering books and writers you might never have otherwise discovered.
I plan to continue at least one more month, and see what comes next time.