Pros
Free snacks. The health, dental, and vision insurance are great. Retirement is good too with company match up to 4%, but you have to stay for 4 or 5 years to fully retain their match.
Cons
I can only speak for the Field Research Department, but things have gone downhill very fast in my year and a half at the company. Initially CoStar reels you in with grandiose ideas and talks about things that can be done and how utilized and meaningful your job will be. This is all a lie. While CoStar has endless means and can afford whatever they desire, the money is usually not allocated to the employees. Money is spent on needless things, while employees are asked to cut corners on the equipment used for creating content that is being sold as "professional". The second, and major issue to me, is that the company culture is less than desirable, and that is putting it politely. Being a grown adult you expect to have a little bit of freedom and responsibility to do your job. Not at CoStar. You constantly feel like you are under a microscope and having your every move watched. I absolutely understand why a company would want to monitor their employees, but CoStar takes it to another, unnecessary, level. All of the work and tasks you are given as an employee are insulting and degrading, in my opinion. As well, I feel as if my opinion doesn't matter on anything, even when asked. This creates a lackluster and negative culture. Thirdly, upper management is constantly changing what its desires are. One minute you will be told to do a task a certain way, then a minute later it will be wrong. There is no sense of direction as to where the department is heading. This creates a very frustrating work environment for all employees. If you enjoy the cliche environment of how a massive corporation works, then this place is for you. If you want to take pride in your work and feel like you're making an impact, then stay away.