That will work to see which emails have how many unsubscribes, but you'll only get statistics and no names, as you can't group by email address.
If you use a lead report, you can group by email address. In the smart list you select Unsubscribed=True. Subscribe yourself daily, and you will get a list of all unsubscribed people every day.
You could also add an additional filter to "Unsubscribed from email" with a date constraint on yesterday. This will give you only the people that unsubscribed yesterday.