Except for browsing you can also do changes:
- You select an object. The properties of the object will be shown and be editable in a property editor.
- Many objects can be deleted.
- From an alphabetic list of all features in the 12hive, you can install/uninstall the feature
- When the feature is installed you can go to the webapp/sitecoll/site and activate/deactivate it.
… and much more.
It has a nice restore feature for restoring individual files from a unconnnected restored content base to the recycle bin of an online site.