We use and LOVE Dashboard reports. However, when we double click a column to see the underlying data then adding summary data such as average, total, count, etc, the column doesn't resize, meaning that you cannot see the full numbers for the summary "$55,000" looks like "$55" requiring another step or 2 to do so.
Furthermore, when you double click the column width, it does not take into account the width of the summary data, only the data feeding into it. This requires lining up your mouse to manually resize the columns to show the summary data width.