I LOVE these bookshelves. I ordered 3 right away based on the reviews and since then ordered 1 more. One of them is being used on the side as a media unit, and the other 3 are for books and display. I've spent a long long time looking for good design backless shelves in white and these are even better than I expected. The pricing is outstanding (about 50-65% less for what I saw for similar shelves but not as nice).
A few assembly notes:
1) Buy your own wood glue. What they give you is not enough.
2) Put all the pieces together before gluing or screwing anything in. We messed up a whole bunch of times.
Although the assembly was tricky, the bookcases are amazing.