I’ve heard it over and over, read it again and again, seen it here and there and I’ve said no, no way. But wow! I didn’t believe it until I saw it. Save yourself the time and get a circular polarizer filter. I have a B+W slim mount so it can mount on a wide angle. Seeing is believing, see for yourself.
PPS. these have been intentionally very very lightly post processed so the effect of the polarizer filter can be seen.