Short version: promised 90 minutes and $300, received OVER 4 hours and $0.
Longer version: We were convinced by what the timeshare people themselves refer to as a "body snatcher" at the Advantage Car Rental that a pleasant 90 minutes would earn us $300 CASH "green money". At the 3 hour mark, after Nick had used every ridiculous combination of numbers to make buying at Grand Mayan seem like it made sense, we told him no thanks and ask for our gift. After 30 more minutes of "survey" with Rafael and such questions as: describe in one word why you are not taking advantage of this wonderful offer, we again ask politely for our money. After over 30 more minutes of stalling us and handing us back and forth between different people, each of whom was supposedly going to help us, we finally gave up and left in disgust, just as like several other vacationers ahead of us had done.
The icing on the cake was when we ran into Nick (the lying SOB from Vida) at the Walmart in Cabo that same afternoon. He tried unsuccessfully to avoid my family, and when I ask him (in front of his girlfriend) if he was proud to lie for a living, he acted as if he had no idea why I was upset and suggested that I go back to the Grand Mayan and "just ask for my money".
As I told of my ordeal to every tourist who would listen all week, I heard more and more similar complaints about Vida Vacations in Los Cabos, as well as complaints from people actually staying at the Grand Mayan. My motto now: No Gracias.