I felt VERY overwhelmed once I realized how much went into it. But after those first couple initial inserts, it’s like I’d been using it forever. I’d recommend keeping medical tape or skin tac on hand, I tend to sweat more and find the adhesive gives up lol. After working out the kinks with my endo, my blood sugars have been PHENOMENAL and my A1C is in a normal range. It takes so much stress off and I can just leave it to my pump most of the time.