We have no basements in Texas, so our garage requires storage for lots of items.  My husband and I are retired, but we tackled the assembly last summer while Hurricane Harvey came through central Texas.  We had very little difficulty and managed to get it done without raising voices at all (neither one of us is a skilled builder or engineer).  Almost a year later it still looks great and holds a lot of things that would have cluttered up the house, but need to be accessed quickly.  We hope to get others this year.