From what I understand the CVT has been pretty good on the Versa. Nissan has been using them since 2003, yours is a much later generation, and their have been lots of improvements. Unlike reg automatic transmissions they are very sensitive to neglected fluid changes. If you live in a very hot climate, a mountainous region or do very long drives with it be extra religious about servicing and changing the fluid more often. It will add to the servicing costs, but it should also allow you to maximize the life of your transmission.