Thoughts on nanotech shower screens

Hi fellow espresso aficionados,

I’m thinking to get a nanotech shower screen (IMS BV200NT, for example) for my Breville/Sage Barista Touch Impress and wanted to ask if any of you have any experience with NT shower screens…

Would there be any taste difference between the stock Breville/Sage shower screen?

Also, how tough is the NT coating? Say, if I use a metallic puck screen and it ends up rubbing up against the NT coating on the shower screen, would the NT coating get ruined/damaged?

And as a followup, does the NT coating help repel coffee grounds and distribute water better? I thought the latter would be more influenced by the quality and distribution of holes in the shower head. Also, does having the NT coating mean the puck screen is redundant for both distribution of water and grind sticking to shower screen?

Thanks in advance for your thoughts!