If you are on the go and are looking to get a good workout in, This is the band kit for you!  The clipping system for adding the resistance band is excellent.  You can get up to about 175 lbs of total resistance. It comes with a door mount so you can mount the resistance bands on a door way to get many additional exercises.  It also has the ankle attachment so you can work your legs mainly the adductors and abductors. While I was skeptical at first, you can really develop a good workout that will work the entire body.  The book it comes with shows you many.  Also I have found many YouTube videos on using bands in workouts.  Band for your exercise buck, you can't go wrong with this kit!