I worked at Argonne for a year. Depending on the teams you're working with, it can be exciting or mind numbing boring. I spent a lot of time building test documentation systems, so my job was boring, but i got to walk around the campus, explore buildings, meet scientists doing cool and boring projects.
Life seemed to move slower here, nobody was up in arms about timelines to sell products to new customers for lower advertising costs, and though annual budget processes were mundane, that was for the directors to deal with.
The commute was the worst part. But the people and work made up for it.