I have been using PDF-Xchange
for a long time with good results. In earlier versions of AutoCAD (2013 and before) it consistently produced better and much smaller PDFs and it is much faster. It's also much more configurable.
I use a PDF.pc3 file so I can swap out the PDF printer at a later date (in theory). I also use Plotter.pc3 and A3.pc3 for the same reason, also because I use various set-ups in for various clients. Swapping them out always seems to be much harder than it should be but ... AutoCAD.
Confession: I'm still using v2013 so I can't comment on the newer versions and PDF.