I live in Sydney and we have a bunch of these on the street. There’s also one in my next door neighbours small back yard growing over my house.
I think I might be in the minority but I really don’t like them. The tiny leaves fall all the time and make a mess, and the purple flowers smell really bad and also make a mess.
Not only do they make a mess but they block my gutters and the roots have destroyed a lot of sewer pipes. I’d much rather see some native Australian trees planted such as paper barks or flame trees. I really don’t get the love affair with them.