I was surprised at how much of a better fit this was compared to the standard fitting. I was able to get a much better dispersion of water through the grinds.

This gauge works like a charm! I have the Neo Flex Gen 1, and it's a bit of an odd fit, but not too difficult. It is the perfect addition to your Flex Neo. It really makes it easy to learn how much pressure is the right pressure, to get great shots every time.

This is a kit is a must have for any one with a Neo Flex gen 1. It works well with mine, it’s a bit of a weird fit but it works perfectly!! It takes out the guess work on pulling shots! It’s too bad they didn’t include this initially!

Before having a pressure Gauge, I didn't notice a wasn't using enough force to reach "espresso level".

I would say this offers reassurance that you are using the correct and safe amount of force in the machine.