It's actually pretty immersive. Even on my old computer at 5 fps on min settings, walking through the desert with my radio turned on was pretty damn cool. It's also got decent combat and some really cool stuff hidden where you wouldn't think to look. It was my first Bethesda game but luckily I didn't run into too many game-breaking bugs.I had a funny one where the model for bullet wounds were somehow replaced with wolves, meaning I had a gun that shot wolves.
On the pc version, you can spawn in an ubergun for the people who don't really care about hardware progression and just want a cool sandbox.