It is basically useless when you are informed that your drive is reaching its limit and you can not ascertain which folder/s are using the most 'space'.

The only way to find out what's "hogging up" drive space is to have to individually drill down into each folder and see what size the files are.

Extremely and utterly frustrating, especially when you have tens/hundreds of folders, and in this day and age of 'internet functionality' it's like stepping back into the 80's as the only way to find out what's using up space is to check each file.

Frustrated.