Pros
It can be hit or miss with managers, but I personally had a great manager who was super supportive and allowed me to grow immensely during my time at BME. A lot of my colleagues were genuinely great people too, and I loved the diversity with many people from different countries and cultures.
Cons
Waaay too ambitious for the reality of the company. Each person probably does the job of around 5 people. Yes, it's a start-up, but if people are overworked, severely undertrained, and have to deal with a 'my way or the highway' attitude from some members of leadership, it's not a great environment to work in.