Keeps group head much cleaner without changing espresso results. Easy to clean.
Easy inexpensive upgrade - makes for consistent shots, minimizes channelling, with no apparent downsides
Well made screen, slightly thinner than the usual 1.7mm thickness by others. Nice rounded edges unlike others and performs well! Highly recommend!
Not only does it keep the group head cleaner, I've also noticed a definite improvement in the espresso quality.