I was one of the ones that had a catastrophic failure, but I'm not mad. It would have been nice to get the warning that I would need to re-install the old version if it failed before the update actually replaced it, but again not something worth whining about. So what happened, is it uninstalled all of my mods but only re-installed some of them, about 25%, I also kept the new version of NMM and it's working better than ever. What I did was decide that it was a good time for a clean wipe, deleted all of my game and mod files and started over with a fresh install of Skyrim, then spent the evening choosing and picking the mods that I wanted in a logical order. Getting my performance back and having the game the way I want to play it from the start was well worth the hassle. If it wasn't for this site I wouldn't still be playing this game four years from launch, nor would I be nearly as excited as I am for the launch of Fallout 4. Mods make the game for me and your site and tools make it easy.