Reliable/consistent internet speeds. The fastest download speeds compared to 5+ other people I know. No problem streaming HD movies/TV shows on Netflix. Optus sport an added bonus but you have to pay extra for it unless you are already in a comprehensive/expensive plan with Optus, then it's free. If there are ever dropouts or if Optus is down for maintenance (which is rare and usually in the early hours of the morning) Optus lists all the affected areas and notifies how long until your internet will be back up again.