That would be a good one IMHO.
I would classify softshells in three catagories.....
1. Softshell, tightly woven fabric, wind resistant, water resistant, HIGHLY breathable.
2. Windbloc, same fabric with Windstopper or such. Wind proof, water repelant, very breathable. (like the MHW your looking at).
3. Waterproof Laminate. Waterproof, seams may or may not be sealed, windproof, breathable. Like any ski jacket but material is softshell and normally full stretch.
Now most softshells just like any jacket are treated with a DWR. So when new it will bead up water. As the jacket wears and gets dirty the DWR loses it repleancy. Wash it (powder detergant, no fabric softner) 2nd rinse, and DRY it and it will bring the DWR back to life. Most DWR finishes last through 10-20 wash cycles.