I wanted to love these as much as I love the X shaped patch that is sold for the Freestyle Libre sensor. I've been buying those and cutting out the shape of my Dexcom G7 and they stick amazing, no irritation and could last longer if the sensor did. The Dexcom G7 didn't have a specific patch in a solid colour like I liked at first so I went with the X + the shape was kinda cool & I figured the 4 arms of the X would allow for better movement = greater patch adhesion. Fast forward to this patch, I think I might be right on the whole shape allows for movement. The rounder shape of this one unsticks at the entire edge and comes off with minimal effort if I decide to replace it because it's barely hanging on. Maybe if it was cut out into a daisy shape (multiple contact points in different directions) it would follow the skin's natural ability to stretch and move, especially given it's around the triceps area. I'd love to see an update on the design in similar fashion as the X shape patch like this in the future. At the moment, I'm going through a patch every 12hr-15hrs :( will likely buy the X shaped one again next time even if I have to make the cutouts myself.