A clear bra done right will look good for years! Just clay bar and wax like normal paint, if the bra goes to crap, remove it and install a new one... It's just like vynl stripes only the light actually hits the paint (fading evenly).
Clear bra a way better option than covering up the front with black fabric that holds water, dirt etc. to the paint and rubs it in! Remove the bra and the paint looks like crap and doesn't match the rest of the car...