Although I am not a Plat. (I am gold), I had to call 5 times to reserve reservations at a MVC in Orlando. One the first few calls they said the hotel was booked completely for points redemption but I could still book online. Furthermore, I was redeeming a 7 day package certificate and NOBODY seemed to know how to book it! I finally called the Marriott Vacations number and they transferred me to another desk who did know how to book it.
Overall, not impressed with my first points redemption calls.