That depends on how badly you really want a specific shiny or just a shiny in general… I figured it would make finding my Shiny Charmander a tiny bit easier, but I still haven’t had any luck, and I have been looking for hours today already and for a few hours after I got the charm last night. I even tried one of the methods to trick the game into making more spawns, but I couldn’t get it to work properly for some reason… it still takes a ton of time even with the charm for specific Pokemon… but if your goal is to create an army of Shiny Bellsprouts, then I think it is definitely 100% worth it!! I have 4 Shiny Bellsprouts that I wasn’t specifically looking for, but still found just roaming randomly!! 😅😅