1. The interface is not an intuitive interface 2. The whole program runs incredibly slow 3. Random dependency issues pop up and given that for all Bethesda games people would be using LOOT, these messages are annoying. 4. While Nexus Mod Manager had some issues, it actually did what it was supposed to and I find myself struggling with Vortex not knowing if what I am doing will actually work. So, going back to NMM until such time as Vortex becomes useful.