Quick Tax Returns

One of my teachers is leaving at the end of her contract. They would like to file her tax return. I suggested that she file early and then also fill out the proxy form and have someone pick up her money and send it to her. However, she has heard of something called the quick return. She can get her money back in 3-5 working days. Does anyone know about this?

Is it possible?
What are the pros? Cons?

If she files, she will have to wait until she has received her last salary payment, right?