Product review (2 stars): Doesn't clean well
We have hard water and I needed to replace the original that I had had for 2 years.  I had cleaned it as much as it could be.  When this arrived I installed and it worked great.  Time for the first cleaning and it soaked in a water/vinegar solution for about 20 min.  Removed much of the calcium scale.  A second soaking which was more specific to the area that still has some buildup and I went to reinstall and it is falling apart and will not hold its shape.  Only had for a month or so.  Will look at alternatives