Great device. It is very easy to set up. Initial charge took some hours but since then it is always charged (I leave it on charger.) Quite "real" feeling - the massage feels like hands pinching! I liked the way I could change how deep the massage goes, mostly by lightening up on the straps and holding it with less pressure against my neck. I also liked the heat feature. I saw other rvws that mentioned it did not fit their neck but I thought it fit perfectly. (make sure you aren't using it upside down! Bob & Brad Logo should be right side up) My husband and young adult son also used it & had no issue with size. All of us really liked it & for sure will use it regularly.