Pros
I help work on the games team at Lumosity. It's a fantastic company with great values and goals; I could (and do) recommend it to anyone in a tech field. Leadership is very open and oriented toward your personal goals, from upper management to team leads. The company is always reaching for new directions and better processes as it grows. The atmosphere is creative and experimental, with an emphasis on user testing and iteration. Teamwork is close and empowering, and there's always something new and exciting to work on. One of the company's greatest strengths is the focus on team fit during the interview process; the results are highly effective groups that respect AND like each other. Benefits are insane, the facilities are great, and there's an overall sense of being appreciated for your passion.
Cons
This is a company for motivated adults. The great team culture and fun come with an understanding that you're working hard; slackers and paycheck collectors need not apply. This isn't a con for the right person - it means that Lumosity attracts some of the most talented and passionate people I've ever worked with. The hardest part of working here is the high quality bar for code and art. Because so many internal people are passionate about the product, it can sometimes take longer than you'd think to release a top-notch game or feature.