If one considers Fallout 4 to be outside of the Fallout continuity the game is actually good. Nexus Mod Manager is not only not recommended, it is also not supported by the TTW team (.
Mod Organizer 2 (MO2) is the recommended mod manager. People back in the day thought most modders. With a changelog over 30000 lines long (when all weapon mesh fixes are condensed to one line), and a brand new installer capable of automatically installing all the utilities you'll need to run TTW and re-encoding Fallout 3's audio files, 3.2 is worth the wait. The mod implements features introduced in New Vegas into Fallout 3, such as the Companion Wheel, crafting recipes, and weapon mods.
Tale of Two Wastelands is a total conversion mod for Fallout: New Vegas that merges the entire content of Fallout 3 and its DLC and New Vegas into one game.