Pros
It is a place where you can find yourself. I have been fortunate enough to work across many areas of the business in various roles and involved in many projects since starting at Fourth and it is fascinating to see the different skill sets and personalities that we have, all working towards the same goal, delivering great products and services. There is constant change (which I know to some people may not be a pro) but it is always in an effort to grow, develop and evolve the business and the products. It allows you to develop, perhaps not in the most obvious way, but if you know you can make an improvement and you want it to happen, you can make it so. The structure is very flat, the board very approachable and the office atmosphere makes working at Fourth somewhere you are happy to spend your day. I feel a part of Fourth, I made a huge career change joining and I don't regret it one bit. Plus - the staff parties are fantastic!
Cons
When you move at the pace that Fourth does, there can be communication issues (but hey, where isn't there?) which in turn can lead to a bit of duplication of efforts but the company always looks to address this.