Pros
If you like genealogy or family history, there isn't really a better place to work. Lots of excitement and energy. They are also leading in high-tech to use DNA for discovering your genealogical origins. Executives seems to understand both technology and customers.
Cons
Lots of politics. Some teams are very subservient to others, or even one mid-level director-type who is free to make any unilateral decision without question, even if his entire project team of 20+ people unanimously disagrees. Taking the initiative in those teams is not only discouraged, but actively criticized. Someone once complained about me to my VP (like 3 levels up) without talking to me first. Instead of asking whether the complaint was valid, my boss told me that he'd been instructed to "fix the problem" by getting me to change. Whether the complaint was valid wasn't even relevant. I had to learn how to navigate the politics of the situation, which I tried to do. It wore me out. Other groups have different experiences, of course. Ancestry is a big place. I'd recommend interviewing, and just asking some good questions to see what things are like on the team you'll be working with.
