Pros
A management team that truly listens. A culture of constant improvement, with smart and passionate coworkers. Working on a good product at a company that cares about its customers and community. A dynamic and quickly changing environment. A reasonable work/life balance. Unlike some reviewers, I find the work life balance completely acceptable, but it does require some amount of personal responsibility. Decide how much you're willing to work, and then do that. I tend to work 45-50 hours a week and am encouraged to take several weeks of vacation a year.
Cons
EMN8 (now Tillster) is still a young company, so it's still figuring out how best to work. There isn't always the same structure you'd expect to find at a more mature company. There is a high standard of quality for all of our work, which can be both a pro and a con. On balance, this is more good than not.