Fallout 4 is a great game, and the modding community is just as great. Mods have greatly improved what Bethesda has overlooked or didn't bother to add the original game. The best part of modding is modders are always around. There are many types of mods, ranging from new weapons to item retextures. Some make the game much more crazy and others make you delve more into the universe, not to mention how much lore Bethesda added on their own. Nexus is a great place to get your mods. Combined with Nexus Mod Manager (NMM) is a great way to sort and download mods for Fallout and many more games.
The story of Fallout 4 was okay. It was not the best story of all the Fallout series. The plot twists were really good though, even if some people probably guessed something like how the end of the game really was. How the characters fit into the story was nice, but could use some harder enemies to face throughout the story. The bosses weren't even that hard, even though some of had smaller enemies to attack you. One of the hardest parts of the game was deciding what perks you wanted, and what type of character you want to be. If you do play Fallout 4 for the first time, I recommend you decide the type of character you play first. I give Fallout 4 a 9 out of 10