This is amazing for my teeth, this is my personal experience towards it. I've been using it for two month - I can't find anything wrong with it ! It feels great, and my mouth actually does feel cleaner than with other toothbrushes. While using it i feel very soft Bristles which gently clean my teeths. Sometime while cleaning the teeth we feel bit blood through the teeth but using this no chance for it. Its first good advantage is the extra-soft bristles are great if you have sensitive teeth like I do. The bristles glide across your teeth comfortably, and do not cause discomfort on the gums (which has always been a problem for me). The shape of the bristles makes it easy to reach hard-to-reach places in the back of the mouth, and the bristles don't get harder over time, the way most have for me in the past. Overall i would tell it's very effective, and so comfortable! If somebody feel the same problem like me then go and buy it. It will work fast.