[This review was collected as part of a promotion.] I'm a first time electric toothbrush user and had to figure some things out. (e.g. you have to put the toothbrush in your mouth BEFORE you turn it on or it will vibrate the toothpaste off). I bought is because of gum recession. It says it runs for 2 minutes. Well, actually it's 3 1/2 minutes if you have it on "gums". Way too long! It's supposed to connect to your smartphone, but it's hit or miss and sometimes says you have to put it on the charger first, even though it's charged. I don't find the app helpful other than the initial feedback on my technique. Not worth the extra money for the smart feature. But once I got used to it, I like it. I do my femur neck bone building exercises while I'm brushing to make better use of the time so my exercises get done faithfully twice a day!