I love all Black + Blum products. I bought two of these. They are a lot larger than I thought but really, really nice. Will be buying more.
Only negative, if you could call it that, is that they take up quite a lot of room and if you are a book fanatic, as I am, you give up space reluctantly that is not taken up by books. However these are worth it.
You can either make your own bookend that does the job but doesn't look nice or buy this which enhances a well decorated room. It is 'different' and enhances the room it is in. Does the job required too. Worth the money if you have a small bit of disposable income.