It then leaves the database in a read-only state. So now you can restore the database back to a point in time (even mid log backup). Check the data. Restore a few minutes into the future. Check the data again. Over and over again until you are where you need to be. It’s still going to be tedious but better than doing the full restore over again each time you need to check, right?
On top of that we can use the same idea and combine it with log shipping. Now you not only have a spare in case of a DR situation but that spare can be read only most of the time (except when actually restoring). You can use it to run reports, ad-hoc queries, etc. (Don’t use it for CHECKDBs.)
Those are a few good uses of the WITH STANDBY option.