I have them and they are a pretty good workout and as you said they are portable so you could take them with you if you are traveling and wanted to get in a little exercise. I got a set that includes a video (Tamilee Webb is the instructor) and it also has a bar that you can attach one of the bands to. It has a little bag that the whole thing fits into for storage and the bar can be disassembled and go in the bag as well.
Linda
When I stand before God at the end of my life, I would hope that I would not have a single bit of talent left and I could say “I used everything you gave me.”
Erma Bombeck