The Audit option on opening Revit project file is useful. It was several times when it fixed the file which I couldn't open. Currently all our users are suggested to activate the Audit option on every Revit file opening. Although Revit warns that the Audit takes long time I didn't notice that file opening is longer than without the option.
Please let the Audit process running for every file. And then the Audit option can be removed from the Open File dialog box, making it simpler.