The work is not rewarding at all, its a call center no matter what they say. Past the initial phase of learning how CoStar operates and how you collect data you wont learn anything else about commercial real estate. Upper management has consistently failed to deliver on promises of additional learning opportunities. They promised classes and tutorials in SQL, excel, financial analysis in commercial real estate and not a single one was realized. The work is very basic. If you absolutely need a place to work while you get situated in D.C. then CoStar is the place for you. If you do find yourself employed here, I would not recommend working here for more than one quarter, there are much better entry level opportunities D.C.