I've used that for a long time too, works great!Still loving mine after about 3 years. The stainless still looks great and I've beaten the living hell out of the tips off roading and they have held up surprisingly well. The outside of them have some nice dents but the insides are perfectly round as they should be. You can't see the dents at all unless you get up very close to it, so it still looks fantastic.
I have the polished stainless version.
I use this to polish the tips and muffler about 4x a year or so. Great product!