I am torn between 3 and 4 stars...the shelves are pretty much exactly what we were looking for, however installation was a nightmare. The screws they provide are VERY long, but not threaded the entire way. It also dictates the spacing between the brackets and the relation to the studs. It was difficult to find a spot on our wall that met all the requirements, so one of the brackets is not in the stud... They also had a strong smell of the stain used on the wood, that we had to let air out for several days prior to hanging.
Overall I would say 3.5, most be subtracted from the installation aspect.