Pros
Most of the people who survive here are actually really nice and hard working smart indivuals. Great Boulder location, though highly expensive and wasteful in an environment without 401K match or annual raises. "In it together" attitude amongst employees.
Cons
-I am NOT surprised by the cluster of 4 and 5 star reviews. There is a big push from my management to post on Glassdoor (see responses on Glassdoor to understand how weird Zayo is). If you have constructive criticism on Glassdoor and have the guts to express it, be prepared for a rambling note from top management offering the bottom line answer: "you suck, you are not a good fit, you should just quit.". So tired of seeing or hearing "maybe you're not a fit for Zayo". I have invested my life in Zayo just as much as the CEO has invested his life. I'm sure he or whoever is writing for him will respond that his time and his life are much more valuable than mine, but I can assure you that my family does not think so. -All employees work hard and deserve our pay and equity. It's not a gift, quit acting like it is. -Lots of favoritism, flexibility and time off if you are associated with the BullPen or a "friend".