I got some soft-boxes the other day and I want to try them out. I photographed my kids today after eating some turkey. I just had them in front of a scrim and I then added the background in Photoshop. I set up a pair of speelights in the softboxes just behind me at about 45 degrees angle to the subject. The soft-boxes performed as expected, softening the light from the speedlights. I'm happy to add this equipment as it enables me to produce results like you see below in otherwise poor lighting.