I have to chuckle about this toothbrush. I have been using it for 10 years and it is still going strong. I have taken it on vacations, used it while in the hospital, use it at home, accidentally submerged it in water, dropped it on the floor, and it is still going strong. The handle never gets hot and its charges up super fast. It still has a fast speed and the brush heads are easy to get. I'm sure the speed could be faster but it does a good job. I always have a good check-up at the dentist and have almost no plaque. The unit sits on top of my bathroom counter and I keep it plugged in. I have never had any issues with power, it not charging, or the brush heads not moving. The unit is completely sealed to keep out debris and liquid. It fits into my hand easily and it has a rubber grip so it doesn't slip. If you are looking for a very durable electric toothbrush, this is it. I almost wish it would stop working so I can try a new one!