^^^^What He Said^^^
The only downside (my opinion) is that ACOP work can get boring after a while. How many times can you Review the same manual? All jobs get routine and unsatisfying over time in all honesty, but GAOPS at least has significant variety. When I did G/A work, I was never bored, more like stressed out & running around with my hair on fire most to the time. Some offices have slower pace and less work. I happened to work for one of the busiest FSDO's in the country for a while. Great experience! Some people really like that sort of work and thrive on it.
There is also regional and HQ work. I really enjoy the regional work myself, NextGen technical stuff. Good luck to all, you will find your niche eventually...