NOT MF, have various pelcian and Pelica-clone as well as ThinkTank bags, but I have trended to use Porta Brace bags (sourced from B&H).
What I found wanting with hardcases is the lack of outside pockets for items that don't need to be waterproof or crush protected (cables, etc., ). These items end up consuming needed interior space require you to open teh entire case to get access to say a power cable, or grey card, etc.
On the flip side, soft bags are just that -- soft. What I like about Porta Brace is their rep within broadcast world, and their almost hybrid nature. Most have a padded rigid interior shell with adjustable dividers & velcro-friendly padded envelopes inside and exterior nylon shell with lots of pockets on outside for quick-access items that don't need hard-case protection. VERY, VERY well made, water and stain resistant. Highly recommended as an option.