If you follow the instructions provided 100 % you won't have a problem assembling it, specially the one about using a hard surface and not carpet or soft surface to put all parts together. Mine is holding 29 pairs of shoes right now without a problem and there's room for a couple more. Not always it will be able to hold 36 pair of shoes, it depends on shoe size, usually with men shoes you will be able to place only 2 pair of shoes per bar and 3 pairs of women's shoes.
Highly recommended.