Unusual method of touring, input requested...

Rocky 2 buckets

I have put this in GC as it covers a lot of subjects-Generally. I am considering buying a 'Tailgate Awning' for My Pickup Truck. The intention is to tour around different parts of the Country, the bed of My Truck is 6'-7" x 5', so that will be the bedroom/storage.
Has or is anyone using this method of touring?, can anyone offer either positives or negatives.