This is the route i take usually.
From Doha to Alkhor the new road.
From Alkhor to Shamal Throught ruwais road bit rough
From Shamal To Zubarah nice open empty road
From Zubarah to ghuwriya good road
From Ghuwriya to Jamiliya empty straight road smooth
From Jamiliya to Dukhan only 5km Rough road rest fly at 200km/h
From Dukhan To Umbab Perfect road new made by QP empty road
From Dukan to Salwa Road Bridge Connecting Perfect fly on it its empty.
From Salwa Road connecting to Umsaeed Road Smooth heavy 6 wheel Traffic
From Umsaeed welcome to Doha.
Takes u 10 hours have a nice day :P
Goooooooooooooooooooooooooooooooo