I really liked the Caesar's Legion thing. It's an element of post-apocalyptic fiction that is often overlooked, the fact that society rebuilds, that the slate has been wiped clean, but that new creations may mirror the past.
It's somewhat ironic that most of this is ignored in modern takes on the genre, because the book that arguably kicked it all off, 'A Canticle For Liebowitz', was heavily driven by the idea of cyclical history. So for me, the presence of Caesar's Legion definitely added to the credibility of the setting (while the Strip detracted from it, so swings and roundabouts).
+1
I also enjoyed ceasar's Legion, kinda like this reestablished roman discipline. Especially loved this remarkable song at the main camp
As for Fallout 4:
I was hyped but kinda got spoiled with The Witcher 3:
After playing it , i started a new Skyrim game realizing, how every Obsidian game is kinda the same.
I mean, all those games are pretty much the same, storytelling and gameplay wise.
I'm buying Fallout 4 probably, but i am kinda fed up with the storytelling approach. I hope they change something. In every game you are the "choosen one". In. every. gardening. discipline. (Thief guild, dark brotherhood, etc.)
Also difficulty wise, it's not really good. Opponents become more tanky with higher difficulty and you more vulnerable. There is no real "skill factor", if you know what i mean.