I took a back to back in May so I could do # 8 & 9 and my cruise on Breeze in October will be Platinum. After I finished the 9th cruise I got new boarding passes and luggage tags indicating Priority boarding. You must take your 10th cruise by Dec. 31,st to be Platinum or it falls back to the new system.
I did the Faster to the fun on cruise 8 and was amazed at how quickly I got aboard and how wonderful I was treated. Since I was on a back to back they gave me the early departure on cruise 9. It is well worth the money no matter how much the Platinum and Diamond holders complain about being cheated. I will be Platinum and I don't begrudge the people that pay for the privilidge. Good Luck.