I have a stiff upper back caused by R.S.I. so constantly have upper back pain and stiffness, especially in one area.
This massager is really great, not only do I love the Swedish massage function (deep kneading), but the spot massage function is amazing for targeting the exact spot.
I recommend this massager if you're looking for a way to reduce tension, pain and to relax back muscles. The massage is quite deep, so not great if you only want a light massage (although it suggests using a towel between the massage rollers and your back). Feels great and you can even have heat with all massage functions!
If you're trying to decide which massager to go for, this is a great, lightweight massager, does what it says and is excellent value for money!