Does any one know how good the Sally Hansen self spray tan works.?

I mean I know youll probably be orange the first day or two but does it work?Prom is in a month.So im just wondering,because i cant tan,im very fair skinned so this would help to know what works so thanks!!!!Does any one know how good the Sally Hansen self spray tan works.?
it does but it does leave like spots unless you do it once a day untill you get the color you want and try to get all of your skin and let it dry before you put clothes on because it will rub off it not completly dry~!