Choose a folder and browse items largest first in Finder-like columns. See what the scan could not include, show repository/git-ignored items, and find exact duplicates (hardlinks). Only items you select move to Trash, after confirmation.
I use disk space scanners to free up space. I prefer browsing to see, after sorting, which directories or files uses the most space so I made SimplyDiskSweeper to do that.
Choose a folder (often user Home but ~ is common too) and inspect them with Finder-like columns. Version 0.18 shows shows repository-ignored items (useful for developers who use git and gitignore), and finds exact duplicates (hardlinks) inside the folder you choose.
US$14.99 upfront on the Mac App Store.
Do you use a disk space scanner? Does the column workflow make it easier to decide what to inspect than a treemap?