The difference between any of the brands is not in proportion to the cost. The bigger variation is in ease of use and smell. There's little difference to see between glass cleaner and quick detailer. Try both on glass, or side screens.
I prefer Meguiars products just on overall ease of use, smell, and result, but I still use all the others on my shelf.
I've had some Swissvax on the shelf for nearly two years. I ought to try it out.
I once polished and waxed every panel on my Golf with a different brand.........the only difference was the size of the water beading.
