Pros
If you are intelligent and hard working, you can rise rapidly here. In the year that I have spent with the company, I have seen many deserving employees rise from the positions that they were in. If you recently graduated college, you can position yourself to succeed over the long term, because you have are already a step ahead of your peers. The pay is not bad at all, especially considering the actual job. Building is great. CoStar has built a superior product and brand within the CRE community as well.
Cons
One of the biggest problems that the company has is the lack of intelligent employees. Many of them are lazy and looking to cut corners. Many of the employees have not been able to find a consistent job since they graduated college. The job can get mind numbingly repetitive, so try to look for new opportunities or projects within the company. They have new positions opening constantly.