We got the dark version (all shelves) and we love it in the space.  I actually created a base for it to make it a bit taller and more stylish.  The base was not part of the original shelf.

Although the unit is made out of particle board material with veneer on it, it's surprisingly thick and solid.  The veneer material looks good too.  We're very happy with this purchase.

The only thing I didn't like is there are so many cam-lock holes on the unit due to so many connecting pieces.  Make no mistake, the unit is very solid even with cam-locks but each cam-lock hole is inset, which shows the particle board material.  The company provides stickers that are decent at hiding these holes but they were not flat in the package.  So many of them curled, away and didn't stick on one side well.  I plan to just get rid of the stickers eventually and paint the holes black to hide them.  Yes, I like the shelf enough to go through that trouble.