I used 250,000 MR points to stay at the Ritz Carlton Kapalua in Maui for 7 nights back in September. I booked by calling the MR number and had to book about 6 months out. They send you a paper certificate in the mail and you MUST bring it to the hotel when you check in.

We had a fantastic experience, no issues whatsoever. The hotel was fantastic and we are definitely going to book another RC vacation with MR soon.