We built our home in Perth about 4 years ago and chose a colourbond roof and we love it! Personally I like the look better and the range of colours were nicer too and we have had no trouble at all with noise. You can hear the rain a little but not bad at all and DD is a bad sleeper and it never bothered her. And I have never heard any creaks or anything coming from the roof. I say go with colourbond!