The Aussi support team is very helpful but given how many freelancers are desperately seeking money, they often promise and then let you down. This can be tremendously disappointing.
Their algorithm also can cause issues (If I ran the company, I'd include unlimited server space and a Skype/Zoom interface to make it more efficient. Especially if native English isn't exactly native.).
I appreciate the need business-wise to eliminate offline dialogues (although roughly half of FL's try to trick the algo and use an alternate payment system. The other half bid $1 and then say - post acceptance of a project "so what's the budget like a child wanting his allowance"). The budget is your bid. No matter what. And you better have the qualifications to Do.Your.Job).
There are gems in the masses but sometimes you must hire 2-4 people to find 1 honorable person.
I believe in honesty, accountability and optimisation. I expect as much from Freelancers.
(for the record IDC about paying through the platform or not. I'm paying the same amount either way for the convenience. Many Freelancers get very upset. Not my problem)