It was a great purchase. After cleaning the original filters many times, we FINALLY replaced them and got a new brush. Comparing old and new, our brushes were about half the size of a new brush. Attaching the brush was easy. There are 3 hidden screws that need to be removed. Look under the small corner wheels and under the "clear" panel. After replacing the brush and installing new filters, it's like new again. When you turn on an electric brush, it will move on the carpet by itself. ๐