LANL was a fantastic place to work as a post-doc.
I was able to learn and collaborate with some of the best scientists of the world here.
The pay was high for a postdoc if you compare with an academic post-doc, but not as high as an industrial postdoc.
The working hours were nice, you could opt for 9-80 schedule, which meant you could take every - more ... other Friday off.
Los Alamos is very remote though, and the nearest large airport, Albuquerque is ~100 miles away.
There are no metropolitan creature comforts, although plenty of options for outdoor pleasures, like hiking, skiing, biking etc. - less