Pros
Unlike most other schools, teachers never need to spend a dime out of pocket on anything for their classrooms. Compensation is better than local schools (although with many fewer personal/sick days). Despite still having long hours, Uncommon seems to be very aware of the concerns with work-life balance and leaders make frequent nice gestures to keep morale up - buying lunch, etc. Teachers are encouraged to collaborate and given adequate time to do so.
Cons
The network is expanding rapidly and struggling to replicate its successes at some of its newer schools. School culture and discipline are troubling at some schools. "Mission alignment" seems to be favored over expertise in hiring and promotion, resulting in a culture of inexperienced staff who won't question decisions and inexperienced leadership with a one-size-fits-all approach. Classroom turnover is concerning, with most teachers either promoted or burnt out after just a couple years. When I was hired, Uncommon was known for skilled, experienced teachers who drove student achievement through their own decisions. I am worried it is becoming more like other "corporate" charter chains.