It allows the purchase of loan payments and other financial instruments practically instantly and at low cost, plus payments can be tokenized so that cashflow can be managed more tightly as demands require. The system also allows you to purchase traditional bonds etc with cryptocurrency, so you do not have to cash out to fiat and use a standard dealer/investment broker and all their fees. Using Stellar means it can handle a high amount of transactions.
Public sale starts in June, pre sales are over. They are speaking at a summit this weekend. This is under the radar as they are cautious about being compliant to SEC and other regs.