It's interesting that now, staring my 3rd playthrough in order to explore the Automatron DLC without crushing it under level 70 godhood, I'm still finding stuff I missed the first two times through. In Sanctuary Hills, of all places.
I loaded up a bunch of mods, almost all settlement-related. The Homemaker mod has a ton of new parts to play with, but I still ended up making a rather boxy primary building in Sanctuary Hills. Somehow the creativity I applied to making housing in The Sims (which I also revisited recently) doesn't seem to transfer to Fallout 4 buildings.
At least the new building has windows and a gable roof. Those flat-roof buildings I was forced to make before would have been terrible in an actual Boston winter. Also, proper interior doors! It's nice having a wall piece with a door cutout that fits inside, unlike the vanilla door segment which is oversized and only works on exterior walls.
I punted on a few mods after seeing what they actually did. Wastelander's Cookbook, for example, really appealed to me, but it also loaded up all the cooked items with both huge healing bonuses and big, big doses of radiation. That's not what I want out of cooking mod. There's a cooking overhaul mod that has "plans" to shift the emphasis of cooking away from healing (which really ought to be the job of Stimpacks) to mild, long lasting buffs, but so far doesn't do much beyond provide a few utility recipes for oil, dirty water, and adhesives.