While I am not entirely sure you actually need a program to tell you which files are taking up the most space as that information is pretty easy to find, this program does it with amazingly beautiful graphics and appears to be quite easy to use.
Great app. I love the beautiful graphs that show you how you're using your disk space. I don't think I have seen anything so far that manages to be both very useful - helps me spend less time de-cluttering and deleting stuff - and fun at the same time. For an affordable price, nonetheless... A beautiful app for my beautiful Mac.
Very slick easy to use app for seeing where all your disk space went. It shows you charts of disk space usage that you can zoom in or out of to get more or less detail. There's a free trial before you have to buy for $20. Worked great even on my 200+ gb of stuff on my laptop.