It works well enough although it has some limitation (see the MoE thread to see what I managed to do for Austrian helmet).
So we are stuck with variants, atlas files, and some 3D remodelling. Unit Editor for changing the look for units Won't apply to NTW units, they are not the same (see below). I think working with TSV with excel is anway faster than using PFM, and I suspect it will also be faster that this new tools. Except perhaps to undertsand a few columns. DAV is for STW2, with the new columns they have, I'm not sure it can help much. DAVe database tool -> We already have PFM.
