Da Vinci Veneers are just veneers made at the Da Vinci lab. I do not find that they are any better than any other qualified lab.
The "glue" I use is Insure by Cosmedent. I rarely have veneers come off. I have had patients that I have placed veneers 15 to 20 years without a problem. It is not the veneer but the doctor who places them that is the weakest part of the process. If the doctor is not trained properly or does not take the time to learn how to prepare and place veneers, they will usually not last as long as with a doctor who has the training and experience.