Had it for 2 weeks now and it's incredible.
I suffer from (or, should I say, used to suffer from) lower back pain which I can only describe as being due to tight / stiff muscles - any incorrect bending or even sitting on a low sofa would result in the muscles feeling as if they had seized up.
3 sessions per day of 5 - 10 minutes each on this superb massager (shiatsu setting) totally sorts out my back. I suspect I will need to use it daily from now on, but that's a small price to pay, believe me! If you're thinking of getting a Homedics massager then think carefully whether you need the massager to concentrate on one particular area or not. If, like me, you do then definitely go for the SBM-300 because you can have a spot massage with it. If not, then you may want to consider the SBM-200.