Pros
Comfortable work environment.
Growth opportunities if you perform and show initiative.
Cons
I could not stand the elitist, dismissive attitude of management towards the very people they tried to influence. The nature of the job in a middling lobbying agency is, as expected, very toxic. The clients will be mostly associations of companies from various industries, for all of whom there is a reason they need to contract the agency to influence public opinion and legislation. But again, if your politics align with what these companies do or if you don't mind and are able to leave your conflicting morality at the door, its a pretty nice spot to grow.