I'm on PC playing on Ultra. I'm quite happy with the graphics. When you're talking to characters, you can see the detail on their faces. It appears slightly more, saturated, than Skyrim did - which I really like as it separates it more from the series (no more Skyrim with guns nickname!)
Yes, we can all agree this is no CRYSIS 2, but I'd much prefer decent graphics and a good storyline, combat, encounters than amazing graphics and an awful combat system and storyline where you get bored and end up flicking over to some dirty website to pass the time. This is proved by figures showing that one major advlt entertainment sites views dropped DRASTICALLY the day FO4 was released.
But I digress, I am more than happy with the graphics. Anyone that moans about graphics in the game obviously isn't playing for the right reasons!