Pros
Committed and smart people trying to create something special. If you crave ownership, an ability to make a difference, an opportunity to shape something then its a wonderful place. A well differentiated platform, highly rated by customers, analysts and competitors. Building a new category. Few layers of admin or management and staffed by a good bunch of human beings. Prospects and customers love talking to you when you represent Mulesoft - we are agile, have a great solution, are very transparent throughout the process and act with a sense of humility.
Cons
There are very few cons about working here. If you want a 9 to 5 job this is not the place. You don't mind working the longer hours if you love what you do. This place is about work harmony - not necessarily work / life balance.