Bests & Worsts Reviews from Amazon

I have bought this brush 2 times the last time was May 5, 2016. Both times the lock piece for changing out the brushes cracked and eventually fell off. When it happened the first time I just thought oh well I'll just get another. This last time when it broke in the same place I knew it was a faulty design problem. I love my brush so now I give just duck taped it together which requires it to be in the on position all the time. If you purchase this just beware if you change out brushes often it's going to break.