Although ranges enable you to work efficiently with large groups of cells, there are some disadvantages to using range coordinates:
Each time you want to use a range, you must check to see whether it still has the same coordinates (for example, one or more cells might have been inserted or deleted) and, if not, redefine its coordinates.
Range notation is not intuitive. To know what a formula such as
=SUM(E6:E10) is adding, you have to look at the range itself. ...