Coby is crated during the day (he doesn't mind). But my older Shih Tzu has the run of the house. Of course, he doesn't get out of my bed until about 10:30 when he moves to the couch, where he stays until I come home for lunch to let Coby out to torment him. Then he dies in the chair where he remains until I get home again to let Coby out to torment him.
Some day, Coby too, will get the run of the house (hopefully). But he's still too much puppy right now.