Hi,
I've found some posts regarding redemption of qmiles on award flights with QR's partners but they're scattered throughout different threads, so I hope you don't mind, if I create this new thread

Could you please share your experiences with successful or unsuccessful (I hope they're in minority) redemptions?
I plan to make RTW trip in late August 2019 and I'd like to cover part of this trip with my qmiles. However, considering QR's "enhancements", in order to avoid disappointment and disturbances in creation of my trip, I'd like to know with advance, what are chances to exchange my qmiles for one way flight in J for example with JL, CX or MH?
Assuming that I find availability for certain flight on BA or AA website (or any other showing such availability), is there much risk that even though QR will reject my online application for award flight? How long does it take to receive information about successful (or unsuccessful) redemption?