Lakemba is safe, although I think many western women would find Haldon Street(main shopping strip) on any given day pretty off putting. Lots of middle eastern men who love to openly stare at Western women. I understand why Islamic women dress so conservatively! When it comes to attitudes to women they are pigs! I think it will take a generation or two for this too change, as its mainly older migrant men who think this is normal.
That being said, they are not drunk and I think its much safer at night than inner city suburbs.