I'm quite experienced in this FFF world and so far using slicing tools like Cura, Slic3r and Kisslicer.
After 2 weeks trying S3D I could say it is a great slicer with huge potential...but still missing some features present in other slicers specially Slic3r.
The one I miss more is HoneyComb infill. It is slower to print but helps to strengthen the part.
It really makes difference and I guess it would be a great improvement to Simplify3D.
Cheers.
Alex.