The massage itself is fantastic. It goes from the base of your skull down to the bottom of your back near your tail bone. It will knead your neck area and shoulder areas. It kneads, taps, and stretches your back out. It works the muscles all down the spine. There is a great fast vibration mode in many of the programs. The air bags inflate and squeeze your thighs and calves. There are rollers in the feet that work over the bottoms of your feet. Air bags massage the ankle and foot area. Air bags squeeze and massage your arms. Airbags press down on your shoulder muscles. When it stretches you, the air bags grab your feet and stretch your legs out. Then they pin your shoulders while it stretches your back out. The seat oscillates side to side and exercises the hip area subtly. The chair is very quiet while operating. You could have it in a TV room and barely know it was on. There are 9 automatic programs: My favorite is the morning program. It is a very nice combination of stretching and massage. Whenever I come home from a long day at work with my back hurting, that's the one I do. I feel great afterward. Now the coolest thing: If you choose to customize your massage settings, you can just store it. That's it. No body scan needed.
Since buying my i7 I have gained flexibility and loosened up a bit so that I can easily reach down and pick things up off the ground and in general I feel good. Before, if I worked a bunch of hours over several days in a row, it used to take two or three days before my back felt good again. Now I just pop into the chair at the end of the day. It makes me feel great.