I would say one of the reasons some houses are cheaper is because of being close in narangba to toxic industries. Nobody have mentioned the huge problem they have had at Binary Industries. Sorry to tell you but you did ask if there was any negative things about the area. Google the above and you will see what I am talking about.
I sorry but it is one place I would not live within 10 kms of it!! let alone bring up children.
Have a look at this article and make your mind up yourselves.
Photos show toxic Narangba chemical fire&squo;s destruction | The Courier-Mail