Like the roller, not the T-shape.
I bought both the roller and the T-shape massagers. I thought together for $23.99 was a better deal than buying them separately. I liked the roller, even without using the vibration function (battery powered function), I can feel the roller gently pulling my muscles. As for the T-shape bar massager, I don't really know what it does. Even when it vibrates, I don't feel much. Also the one I received seems to have some defect, the bottom doesn't screw on right no matter how I try. Thus it often fails to vibrate even when the battery is good.
Rating: 3 stars