Bought four of these for around an entertainment system. They are sturdy (recommend putting the final, optional finishing nail through the top). They do have the indentation for plates.  Must get the blocks in the exact, perfect location by feeling inside the shelf for the "rise" of the wood on each end. You'll understand when you feel inside.  Measure and remeasure and make sure they are perfectly level.  The first one was difficult - but after we learned the other three went up easily - but with lots of prep work.   We like the bracket assembly better than the block assembly

Pros: Nice finish, look good. Fairly deep for 5 inch items
Cons: Need someone used to putting things together to put on the wall without frustration.