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.