Pros
Talented and passionate developers. Good work-life balance. Some of the most unique games on the market. The fans and players are incredible.
Cons
When leadership fails, they will keep their job, but you won't. Paradox is the type of company that will let a project be mismanaged for 6 years and then cancel it weeks before it's release without warning.
They will either layoff everyone, part ways with the studio leaving them to fend for themselves, or take the project from the studio and give it to another studio... where they will likely do the same to them.
Don't take my word for it, just read the headlines and talk to past Paradox devs. They're more than willing to share their horror stories.
I was warned about the company before joining by ex-paradox developers, but I didn't listen. I thought it would be different. I thought the company was committed to becoming better. So, now I'm warning you. Just run and don't look back, you deserve better than what Paradox can offer you.