Vantaggi
Friendly and relaxed environment, coworkers were great people to be around. This lead to a great place for me to learn how to develop and create an automated testing framework for their website as well as their desktop application. I learned C#, Selenium, and Appium to a good extent here in a Windows environment. Whenever I was stuck on something, I never felt bad about asking for help and management was always helpful. Weekly company paid lunch on Fridays along with stocked kitchen with snacks/drinks. Feedback at the end of my co-ops were also helpful and well thought out.
Svantaggi
Small company (can be a pro or a con depending on what you prefer). I would have also liked to see some more code reviews between people throughout the day, I never really got feedback on whether or not my code could have been better in some ways.