The item is quite heavy, which means it's hard to place on a wall.  For this reason, it's important for there to be strong "holding points," places on the unit where one can get a solid grip and then lift into place.  The "
vanity frame" is the only part that affords this function but, because these parts (top and two sides) are held in place by rubber "bolts," the process is very difficult.  These break off during the process, and must be "repaired" later, a clear design flaw.