For me, the purpose of getting a Onewheel was to capture the same feeling as snowboarding in the summer. For two months, I rode my XR just stock, learning the fundamentals and techniques. Then, I decided to go for the Flightfins as they were one of the few options available to get "bindings." Remember, I'm trying to get the closest feeling to snowboarding.
With Flightfins, I can pick up the board with my feet and switch from regular to goofy with ease. What a game changer! They made me feel comfortable turning and jumping. I also appreciate how small they are. They do take some getting used to, as they have pressure points on your feet. I definitely recommend the extenders.