Dermosonic is popular temporary fix in Europe (particularly in Norway (my homeland) as well as neighboring Sweden), and is usually implemented in high end salons and spas. It is a costly procedure,as you have to be treated upwards of 10 times on average.
You will only lose about 5 to 6 centimeters of fat once all of your treatments are completed. This amount of reduction is fairly unnoticeable, on an overall basis. On the West Coast of the US, Dermosonic is being hyped as the next revolutionary procedure. I give it a thumbs down personally. You'd be better off cutting out your carbs and taking the stairs for these kinds of minimal (and costly) results.