They have little concept of tight spaces. An example is not considering the dishwasher swing in a corner with adjacent drawers; the dishwasher door would hit the drawer knobs if installed to original design. Your contractor (me) would have to spend (waste) valuable time to re-arrange the layout to make everything fit (unpaid). Your HD designer sits never knowing what a bonehead flaw (she, usually) presented the installer and really couldn't care less.

As far as materials, HD stuff is of decent quality and should last a lifetime. We'd all like Kraft-made but, for most folks it's out of the budget. Good Luck,