Pros
Casual dress code and free snacks.
Cons
Senior management participated in an illegal study which included requesting employees to intentionally harass me at work and install spyware on my work computer. They lied about it after being confronted and then forcibly removed me from the organization and refused to provide me a report of their findings after denying their participation. They're still trying to cover it up to this day. If you have information about this study or have been a victim of IAC's or Match.com's additional illegal activities. Definitely contact an attorney and begin recording every conversation you have in person with them. What's even more alarming was that I was a Senior Security Engineer. Senior management had their own IT Security teams install rootkits on my company provided laptop to not only log all my keystrokes they even began intentionally turning off my display to get me to have an outburst in the department so that I would leave.