Pros
Nuance is a fast growing company and made a lot of acquisitions over the past years. This created a very vivid and diverse culture. Management typically comes as combination of internal resources and newly acquired talent. This helps adding value, external views and new concepts.
Cons
Just like in case of many other companies, growth pressure and quarter-orientation makes a lot of stress on divisions as well as on individuals, regardless if you are a manager or lower level employee. Depending on the culture you are coming from, this can be considered as dynamic or less-organized; agile or stressful, - but at the end of the day most people face with high expectations and works under more than necessary stress which you need to learn manage to succeed.