Part of me is glad to see more fallout content with some unambiguous improvements to graphics, the engine, customization and especially the dialogue.
However a lot of this stuff really rustles my jimmies as a fan ever since the original games, they were adult content games yet the game looks like its market at kids, the audience during the e3 event I think most depressed me, their constant over reaction to little things like they all start shouting "weeeeew" when Nuka cola comes on screen, there's the shreiking SJWs when they mention you can play as a woman, despite that being in fallout already. The thing that seemed to get the most reaction was the reveal of the pip boy, they even mention on stage in front of everyone that it's a stupid gimmick and they all still lose their mind over it. I can't help but think it's these kind of kids who are heavily contributing to the dumbing down of this stuff.
I'm in 2 minds about the building stuff, that also looks really gimmicky, crafting stuff to defend existing towns would have been cool by itself, but fallout is about struggling to survive in a world full of junk, not about building some crazy empire of towns, I don't really see how that level of crafting adds anything to the fallout games, especially considering they're single player and no one will ever get to see them, not like Rust or many of the other similar building games around where they're multi player.
A lot of it looks really cool, but there is something that gives me a very "off" feeling about this whole thing, something vaguely worrying about what was sacrificed in the game in order to achieve the sims-like mini game.
Also there's no speak of some of the most important aspects of Fallout, historically it has been the story, a world in conflict, good writing and interesting quests that can be solved in many different ways using more skills than just combat. We saw a dramatic drop in that in Fallout 3 compared to 2 and that was somewhat revived by letting some of the original team work on New Vegas which helped add some of this stuff back in, but it's worrying that all this has taken a back seat to...well making the game into the sims.
The weapon customization looks good, I'm glad you can construct stuff and modify it, that's really neat and fits well in the universe, and of course the dog looks like a really nice addition.
Too much fluff, worryingly little substance on display, lets just really hope they nailed the core game and this side stuff is as they claim, really just optional extra stuff you can ignore.