I originally got this for my partner. He's always sore and works so hard! But then my 18month old found it.....He loves it. He turns it on, then he is happy and busy. Great for racing on the kitchen floor, placing on different surfaces to make funny sounds and annoying the siblings with. The on and off button has been pressed 100s of times in the last month and is still as strong as the day I brought it home. Cute lights and I still haven't had to change the batteries. As a massage device, it works well. My partner and older kids regularly use it with out fault. 9/10 a great purchase for $20.