User Community Feedback

We have a user with a question regarding reports. They want to see the percentage of meetings hosted on their sites that are personal rooms in comparison to the number of meetings that are not personal rooms. I know that some of this info can be gathered from the classic reports meeting usage report; but, there is not a clear demarcation between personal rooms and regular meeting centers. Is there a report that you would recommend, or will we have to escalate to cisco to get a report that more suits his needs?