Best Polish & Wax?

Just bought some genuine MB Polish & Gloss Preserver (500ml each) - tried them both on just the driver's side fender and bonnet. Seems easy enough to
apply and to rub off/polish. Finnish is nice and glossy too. On the gloss preserver thay say to repeat every 3 to 6 months depending on conditions.
Just wondering what other people have experienced - ie. value for money etc.,. Both items costed about $74 Australian dollars (about $58US) so I guess they should be good? How would they compare to Maguires stuff ?
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