Not sure about the NFX, but I have the APX myself. Comfortable goggles, decent vision, easy to change lenses etc. However as they don't have a frame to protect the lens, if you do a lot of tree skiing or take your skis off carelessly the lens tends to get whacked a lot. One of my lenses should probably be changed after about 40 uses as the vision has gotten quite "spotty" due to random whacks and scratches. I assume the NFX is similar. I probably wouldn't buy them again.