My original Grav showerhead downstem broke during cleaning, so I bought another “fission” downstem locally. The one I bought locally chugged like crazy so I was worried the Grav would function the same. Was super happy to find that the Grav fission downstem is 10000% better than the one I had. The holes at the end are super smooth and small, so very easy to control just like with the showerhead. I wouldn’t say this is way better than the original Grav showerhead I had, but about the same. Overall very pleased.