There are only two cons. 
1) While assembling I noticed the backers were uneven. Were I not trained to fix mistakes (construction for 4 years) I probably would have let this slide and/or been a little mad about it.  I just took a razor blade and scored an extra centimeter from the edge to even them out. My girlfriend was watching and commented, "I would never have done that. I would have just dealt with the uneven backers."

2) The shelves actually make a pocket against the inner walls of the unit.  So, if you're storing DVD/Blu-Ray shaped cases the first one or two will be hidden behind the 'pocket'. I just threw in one or two blank cases or a small wedge of wood to fill the pocket.

Otherwise the product has a sleek look and does what it's supposed to.  Holds DVD/Blu-Ray/Video Games etc just fine but would probably be better for plants / statues / figurines / etc