The unit itself is fine, made with what appears to be above-average materials compared to typical bookshelves.  The frame is thick and seems strong.  The black finish is especially nice.  My problem is the description for this clearly states the frame is particle board but the shelves are made of 'wood'.  It is also stated that the shelves have a 55 pound capacity...quite high for half-inch thick particleboard.

So I took this to mean the shelves were composed of strong, solid wood, not the pressboard stuff that sags over time.  Upon opening the box I see that even the shelves are particleboard.  This would have been a deal-breaker.  I needed durable shelves that last over time.  I can only hope they do.

Do not trust the item description when it says the shelves are made of 'wood'...it's particleboard just like the rest of it.