I feel this question is not to quiz you about your knowledge about the company. It also doesn't test if you researched this company or not. I feel that this question is to find out what you know before they explain some things about there company. You should understand that if you are a strong candidate and you are doing well on your interview, then they will start sharing some things about the company to entice you to take the position. However, it could turn out to be a quiz so make sure you do your research before interviewing for a position.
You don't have to list everything you know... just enough to let them know that you did your homework. Also, take a little time to give the company a compliment such as the last sentence. It is a psychological tool that you should use to your advantage. This type of compliment is directed at the company and the interviewer will be happy to hear this.
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