I live in two different houses... 6 months each out of the year. I Sew on a Pfaff during the summer months on the island and a Janome in the winter months (which are my most productive quilting months).
I don't have a sewing room at either house but enjoy the dining room table and the proximity. A sewing room at either house would be upstairs and out of touch... Although I do have storage for fabrics and notions upstairs and out of the way