Also with no outgoing passenger card needed to be filled and put into the box anymore, it saves time.
Ideally, I would have put in more time for the connection, have done it many times, with QF and VA, ideally, I would leave more time.
The bus trip is short, 15 mins, but the thing that irks me is that they stuff the bus chockers full, and many people take on all the possessions, so its a lot of the time standing room only.
Very good apron and runway and taxi way views, evening while there is a bit of sun is very good, a certain wow factor, ... but while the time they hold the bus at gate 15 to fill it up, that is the worrying thing.
Hopefully you have status to use Expresspath.
All the best!