Game runs fine for me on ultra settings @ 1440p; 90+ fps at all times so far. I have a 144Hz monitor before anyone tries to yell at me about it being locked to 60 or whatever. Game looks good, feels good and plays good. The UI could use some work but I've played with worse.
The only actual problems I've been having are sometimes getting stuck when trying to exit a terminal, which I need to load a save to fix, and sometimes the dialogue goes out of sync and gets cut off, same for the radio sometimes too. Overall nothing I can't deal with, hell, I've dealt with far far worse over the years and I'm glad I preordered the game.