I haven't used the Starbrite. I would however, like to put in a plug for Collonite, both the cleaner No 920 and the polish, number 925. I buy it on ebay from whoever is cheapest. It does work. Try it, you'll like it (I think)
I'll second the Collonite the polish is very easy to apply. My future son-in-law gave me a 9" Ryobi buffer the other day and it really makes appling and buffing out the wax very easy. Never thought about buying collonite on e-bay good tip.