Pros
TW has an incredible office (very Google-like) with awesome colleagues. Many company events -- two large company outings per year. Plenty of room for growth and no boundaries with wanting to take initiative. Leadership is competent, understanding, and approachable. Free coffee. The work is varied and interesting with plenty of side-projects to take on. Happy and friendly customers. The product is honest so there's no trying to cheat customers -- it's work you can feel good about doing. Plenty of freedom and trust within the company; no one is every breathing over your shoulder. You're treated like a human being.
Cons
The work can get intense and burn-outs can come quick if you're not careful. Sometimes you get so into your work you need to be reminded to take a proper lunch break. Salaries are a bit too low and yearly raises are not guaranteed (I think a base for a yearly raise should be established). Not necessarily a con, rather a point of improvement, but cross-team communication can be revamped.