Pros
Work life balance was good. Flexibility to work from home regularly once or twice a week, and even more on a case by case basis (e.g. to work from home for an entire week if you wanted to fly back home to visit family, etc.). The education software industry is a good place to be if you care about working on products that can have a positive impact on society. Ellucian is in the process of trying to evolve into a more modern company in order to be more competitive in the market with respect to attract and retaining talent.
Cons
I worked for a team that had been acquired by Ellucian. So I did not work in the main DC office or the other big R&D hub outside Philadelphia. As such I can't comment too insightfully about the culture at the rest of the company. However from my interactions with other teams I can say the inter-departmental communication and collaboration is mediocre. Management is trying at least. They recently introduced Slack company-wide as a way to improve collaboration. But it's a huge company and the only initiatives which were felt within my team were cost-cutting ones.