Pros
Zayo is home to intelligent people, and it's a good launching point for better companies like Facebook, Google, and other big name companies.
Cons
Zayo is not a good place if you want work/life balance or you are prone to stress. While you might not work crazy hours all the time, the company will run you into the ground without hesitation. The recent intake of Level 3 executives has tainted the culture. If you work here, expect to be berated and gaslighted with frequency, especially in product. The culture is toxic. I hope you have your counselor, psychologist, or psychiatrist on speed dial. You're going to need it. While on the topic of poor culture, women do not do well here. While there are groups like WIT and a smattering of women in leadership, it's a peace offering to make up for the fact that women are not equal. Zayo tries to hide it, but this is a traditional telecommunications good ol boys club.