I have always had a sore back and neck. I get what feels like rocks in my back. It takes some serious muscle to penetrate my pain. That's where this wonderful creation comes in handy. It can be used by people who aren't very strong, who want to give a deep tissue massage. I can even use it on myself to massage my neck and shoulders. It comes with multiple settings, and even multiple knobs, including heated knobs. So if you want a softer massage, you use the most softly rounded knobs. On the other hand, you can use the ones that are shaped less rounded, and more pointy, to get a deeper, harder massage. Then there are the heated knobs, those are the ones I use the most frequently. So, you can choose what kind of massage you want, both by the choice of knobs, and by the the choice of settings. It comes with low, medium, and high settings, as well as a variety of programs that use different rhythms and pulses. In addition to this, it comes with an adjustable handle. I have had this for a few years now, and it continues to perform beautifully.