Pros
Good exposure for budding marketers due to the international clients, and the opportunity to work with great teams if you're lucky. The ability to WFH 3 times a week is pretty great. For the remaining 2 days you'll have to be in the office, though there are no set hours for this (yet). The pros really depend on your manager and client teams. If you're assigned to work with great people who are aligned to create great work without wasting time, you'll have a great time.
Cons
When you first join 2X and later join new clients, there's a very strict onboarding process to help you understand how to write. For more senior writers, this process is too long and doesn't end up being very helpful in the long run as it rarely touches on important processes you need to work as a team. They'll deny it, but the work culture is also very siloed. Depending on your client, you're either only executing poorly written briefs or you're overloaded with work beyond your job scope, without clear guidance on how to do any of it. The work gets very repetitive and without proper guidance, it's very unclear how they expect you to grow. A lot of the work doesn't allow for much creativity either, which can be disheartening. The hierarchy is also quite confusing, and it can be unclear who to go to for different problems. For the most part, HR is also quite unresponsive. For the most part, it seems 2X is looking for people who will simply comply with orders. I've seen talented marketers get pushed out or ignored for questioning the status quo or pointing out redundancies. I probably would have enjoyed working here more when I was fresh out of university but as a mid-level writer, I have more frustrations than anything else.