I definitely seem to be getting software updates faster on "advanced". Now, I get "my" update within days of it showing up on teslafi. For example, I may not get 2019.28.1 but when 2019.28.2 comes out and it is meant for my car, I get it almost immediately. In the past, I used to wait weeks before getting "my" update. So "advanced" may not give you "early access" but it does seem to push out the designated update for your car quicker.