We have a 200wx on Blue Sky, connected to our Simrad NSE12. I don't know how it would work with the NN3D as the primary heading sensor, if that is your question. We did have it connected to our Navnet 2 system on our previous boat and it worked well, although we had a separate heading sensor for the AP and radar overlay functions.
I am a big fan of the 200wx. Knowing the true windspeed and direction, plus air temp is very helpful I find. The other parameters, roll, pitch, rate of turn, and barometer are nice, but not that important for me.
One difference I noticed when we moved the wx from the Navnet2 to the Simrad: the wind direction on the Furuno was shown in degrees relative to the vessel heading, eg 30 degrees to port. Meaning that you still had to mentally calculate that against the vessel heading to know the true wind direction. The Simrad simply shows the true wind direction.
The NN3D may give the true wind direction directly, I don't know.
But yes, we are very happy with it.
Campbell River BC