Usable with design flaw [SEP] This does straighten hair nicely, but with one major design flaw. The buttons are on the side of handle where your fingers land, so as your brushing your hair you are constantly turning it off unintentionally! It’s annoying! Why not put the buttons on the underside like most hair products? Also it doesn’t look good with a layered cut. You would need to use a curling iron after straightening.