There are many, but the two that would be the most important to me are 1) Keep reports up to date. Regular 24 hour delays fall far below the standard set by all other PPC engines. 2)Add subtotals on the campaigns interface. I often want to know total spend for the day before or the current day. I don't think it should be necessary to run a report to get that number. Additionally on reports for "days" or "hours", it would be nice to have subtotals on the screen as well. Having to download them to a spreadsheet in order to add up the results is a huge time waster for advertisers.