This box has one major flaw. I've been subscribed for 3 months, and all books (4 of them) I received were sequels from long-standing series. Series where you either have to read 10+ books to catch up to the book they send you, or you already own it because you've been following them.
I think it is common knowledge that including books other than 1st books of the series or stand-alone novels in book boxes is unacceptable.
Also, chances are one or two products will spill over the box during shipping, if you live overseas.