If used right it is great on shoes.
At LDAC resently, my platoon bombed the khaki inspection on shoes, really blew the shining off. All the razor creases in the world and all the shiney brass in the world doesn't save a bad shoe shine, which for me was all Kiwi black.
That night for inspection in our summer blues, we had about 3 hours (if we hoped to sleep more than a half hour) to get all of our shoes sqaured away.
I learned that if you want all your cadets to have a awsome mirror shine, get them all to shine their shoes the exact same way, with the exact same polish. We used Kiwi black, and black parade gloss(a thin coatof parade gloss on top of the black under coat on the toe only), unfortunatly we had not other choice but to melt it, it drys it on but delpetes the natural qualities of the polish wax, it makes them look like shiney black mirrors but it will only last about a week, quick fix that sucked, considering I strip polish the old fashion way.