Build qualityThe materials are well made with no defects. The brackets and tracks are quite heavy duty and thick. The wire shelves are sturdy as well but I wouldn't say "heavy duty" by look (rather thin gauge) but they are very solid and sturdy once mounted. The paint job is great and all pieces are finished well.Installation.Installation is fairly quick and easy once the top rail is level and mounted. You will need a ladder or platform for that. Once done you are now set to lay all the brackets which will be aligned perfectly thanks to the top piece. You can now just space out and set your vertical tracks to sit on studs, screw in and then just place the brackets and shelves.UseThe shelves work great for most items. The wire allows ventilation and helps prevent mold etc. A few items tend to fall over on them if I try to slide them (spray bottles , etc) but otherwise they are great. I like the fact I am able to adjust the configuration slightly as need to maximize space (one shelf is for standard paint can height, one is for 5 gallon bucket height.)Somewhat easy removalI put this on the side of my garage where a car *Could* go so that in an emergency (hail) or just if I want to later, I could remove the lower shelves and drive a car in without encroaching on its space.Final thoughtsThis is a great wall storage unit that I highly recommend. I like the fact its configurable after install and easy to install.