Very solid materials and construction. It is heavy. Two people doing assembly is recommended. I would give this a five but had a slight issue with the pre-assembled center keyboard drawer. The face of the drawer folds up and down. The joint assembly on the drawer was slightly off and the drawer face never completely closed. It looked like a measurement error. I took it apart, measured and trimmed each side with a small hand saw and removed about 1/8" on each side of inside drawer support. It was fine after that.