Using the included layers there are 150 variations of room backgrounds in this set. But you can also get creative, and import you own wallpaper patterns, adjust the colours of the walls or use Hue and Saturation to adjust the finish of the laminate flooring.
The backgrounds work quite well as desktop wallpapers, and are high enough resolution for even the biggest displays. But the most obvious use for these is probably for displaying your own work on the walls, in a virtual gallery-style mock up.
I recommend combining this resource with our free
Photo Frames resource, for excellent results!