High. Features a simple "point and click" interface for patching ISOs.
You cannot run the tool directly from the .7z file. You must extract the contents to a folder before use. Community Perspective Jes.7z
Essential for making backups playable on certain PS2 modchips or software exploits like Free McBoot . Jes.7z
“7-Zip fits a nice niche... and it is able to handle a large variety of file formats in the process.” Wikipedia Jes.7z