PB has been a bugbear of mine for ages. I had a quick trip from CBR to MEL over the last couple of days. The CBR boarding was a debacle. They had 2 queues jammed between the 2 stations where they scan the boarding pass with neither being priority. The people who were looking for general boarding were confused because the sign pointed to the side where there was no queue at all. The guy scanning on what should have been the general boarding seemed more interested in showing that he could scan phones from about 6 feet if passengers held them in the air. There were none of the large premium/general boarding signs anywhere, just A4 sized signs stuck to the front of the boarding station that would not have been visible if there was a queue.
In contrast, in MEL they had 2 queues working well and the lady on the premium queue to the time to welcome me by name and thank me for my continued loyalty as this "kept her in a job" so she appreciated it. They also were boarding this plane from the front and the rear which seemed to speed things up a lot.
Perhaps MEL could send someone up to CBR to give them a bit of training.