The unit seems pretty sturdy and installation was not complicated. The way the unit is supported by only the brackets at the top was a little concerning to me and I did not like the fact that the bottom of the unit was not affixed to the wall so added brackets at the base to secure it.  The extra brackets securing the bottom of the unit also gave me the confidence to add caulking between the shelf and the wall, giving the unit a more finished look. Overall I am pleased with the outcome.