Well some seem way nicer than others, the stick on ones to me, SUCK, but theres kits that actually replace the part, like the thing where the window buttons are, you actually take that off, unscrew the button, and screw the button into the new custom piece.
if you spend a little money, its well worth it. my buddy had a probe with that dash kit but it was like stickers kind of, and it looked like **** but my uncle had an f-150, with the carbon fiber kit, the one that has the REPLACEMENT pieces, and it made the interior look 10x better it looked stock too