I see 2017 is supposed to open native NX files.  Does anyone have experience doing this?  How well does it work?  I often get some modeling done outside and he uses NX.  Usually STP files work well but every now and again the solids come in as surface bodies with gaps and they don't repair well.  When this happens a parasolid file usually solves the problem but they come in as assemblies rather than a part. 

Opening them as native NX files would be nice.