Simple in a narrow hallway. White painted stairs make them appear wider and the grey runner is both practical and elegant. Seek out a slim console - vintage or modern - thats useful and decorative but not space-consuming.
Looking for something like this potentially for our staircase. We painted them white temporarily as a cost-saving measure and really like the look. But think a lovely runner like this would be better in the long run! Grey Carpet Runner to Stairs: