Pros
There is a real sense of care in the office- everyone wants their peers to do well and meet quota. The issues matter (it's not selling solar panels!). There's a lot of (admittedly repetitive) training on the basic skills to optimize signing people up (being friendly, advocating for the cause, how to gently push people to sign up at the door instead of "on the website (meaning 'not at all'), etc). Very few people are doing this as their springboard to "more gainful" employment. But it does cultivate a strong sense of connection and gumption between everyone. You learn a lot about international politics by virtue of learning a lot about the campaigns you're fundraising for.
Cons
This is a hard job. Going door-to-door asking for recurring donations (even if for a noble charity) is hard. Most of the job is failing. It's outside, it's grueling at times. The quota can be hard. You are often the worst part of people's day, and get shut down very hard by wealthy homeowners. The amiable nature of the company sometimes makes it difficult to actively address bias or identity-based challenges of the job (E.g. seeing People of Color struggle to find donation success later in the day because of existing racial biases in neighborhoods).