I put Nu-Finish on my father-in-law's beater two weeks ago. Prior to that, I used Meguiar's cleaner wax. I have to give the edge to Nu-Finish. It did a better job. Meguiar's cleaner wax is still an excellent product, though. The cleaning properties of the two waxes are virtually identical. Nu-Finish just leaves a better shine.
Caveat: I clayed before applying Nu-Finish. I don't know how much the claying helped improve the shine. I don't think it did too much- the car is a real beater, with a good deal of clearcoat deterioration on some panels (it was in an accident and was taken to a cut-rate body shop). Still, though, the clay might be the reason why Nu-Finish had a better shine. I don't think so, but I am open to comments, because I could well be wrong.