Vantaggi
There are none. The SEO Managers are amazing. The team in general are great and eager to learn. That's it.
Svantaggi
Everything else. The CEO is horrible to the team. There is no structure or processes in place at all. The CEO and his little sidekick don't want roadmaps for clients to be implemented, and instead overload everyone with adhoc tasks meaning you're unable to actually deliver any quality work. The CEO is vile, hostile, abuse, aggressive, and does not like change. He gets people in for a month or two, and then gets rids of them once he has lots of ideas from them. He then forces them out of the company, claims he fires them, and then calls them the weakest link on a company call every morning. Avoid this place at all costs.