Finally received confirmation of my May Princess cruise OBC 10 days after applying through Stockperks. Shareholder for over 10 years with many applications to P&O, Princess and Cunard I have never waited so long for confirmation.
Stockperks is not working well for me. Applied a week past Tuesday, Validation confirmed on Friday but Princess acceptance still not confirmed for cruise in May.
I do not recommend this cabin. I had similar one 6144 and would never select this position. I had chosen a guarantee to save cost as a solo traveller. Next time will pay more to be able to select.
I think you would be wise to go with Cunard. I have sailed a half world cruise with P&O and around 25 other cruises with them. Six cruises with Cunard and food selection and quality much better. This could make a significant difference on a world cruise.