I'm yet to see too much benefit. It now takes me longer with orders due to going through MyPost and things taking longer there than on eBay. I'm a bit confused about the whole thing, to be honest. 

Because looking at my invoice, absolutely nothing has changed. The only thing that has changed is, I get money into my bank account instead of Paypal.

All costs are the same. And I thought that since I have to pay for shipping labels now direct to Aus Post, that I wouldn't get charged shipping fees by eBay. But no, for every transaction not only does eBay charge me for the postage, but I have to pay the postage. So postage is effectively double now. 

And contrary to discounts on MyPost Business, I have not received any postage discounts despite sending 10 things just this morning.

When it was all through eBay, they absorbed the cost of the postage and billed me for it. The cost of printing the label in eBay was $0.00. But now they continue to bill me for it, PLUS I pay for postage through Aus Post. Something seems to be wrong with either something I'm doing or with what eBay is doing.

Looking at my eBay invoice. I get An Ad fee, a final evaluation fee and postage fees. So no different.