We have stayed at the Grand Mayans in Riviera Maya and Nuevo Vallarta 5 times in the past 5 years staying 2 weeks each visit. The Grand Mayans are awesome resorts and the Bliss resorts are even more luxurious. We have been timesharing for 22 years and the Grand Mayans are our favorite resorts by far so I am sure we would like the Bliss resorts even more. We are not owners and all of our stays have been via exchanging. I would never buy there and in fact would never buy any Mexican timeshare. Mexican timeshares are easy to exchange into, especially the Grand Mayan/Mayan Palace resorts. Why deal with the restrictions, high maintenance fees, Right to Use instead of deeded, etc. when you can exchange into them. Because the Grupo Mayan keeps building, they are going to have developer units for the foreseeable future ensuring that exchanging in will be pretty easy. You can make the exchange and let the family use it. Buy a deeded timeshare in a high demand/low supply location and use it for exchanging. You can buy some good ones for less than $1,000 resale with low maintenance fees.