Probably too early to ask this question. As it has been said many times, Primo has been around for a few years now, nextgen is just a baby. Also, more people are still using primo than nextgen. There are still many areas that are waiting for licenses, North America is one of them. I installed nextgen but I have no working maps. It's still simple and probably soon we will have more skins, maps, and ux's that will make it more appealing. Until then, primo, for a while will be the best around.