I recently upgraded my machine with a Z-Plus and love it. One issue though is that there was no mount available for my Suckit Dust Boot. I decided to make one myself and figured that there were probably more people in my same situation. My design requirements were that it I could not lose any X travel or require any modifications to the Z-Plus. I also wanted something more rigid than what I could make on my 3D printer.
You can get some pretty cool filaments but the effort and cost involved in being able to print them makes them not as attractive unless you need features you can only make with 3D printing. I have never actually printed any of the chopped fiber filled stuff. I did just get a hardened steel nozzle not to long ago so I could.