From my point of view Primo is better so far than the igo nextgen. I had loaded tomtom 2015.03 maps. The 3d buildings can be seen only for capitals or big cities; ex: Sofia, Istambul and Bucharest nothing else(maps: Bulgaria, Turkey and Romania). On the Primo v.2.01 (android) the building are present even in a small villages. The nextgen loose the satellites time to time without any reason.