I find it useful seat, and effective massages. I just regret that the "neck massage" was not a wider amplitude, when is small, we are reduced to put a pillow under her buttocks, otherwise the balls fall you in the skull. So I put a cushion! Ditto for speed, a slower speed would not hurt either. But aside from these details they will improve, I imagine, I find DI-VIN! Working every day sitting, I savor my fifteen minutes of shiatsu clear conscience tonight. I wonder if we can use it in bed? Nothing against indicated in the instructions ...