I’ve had my XR about 3 weeks. I’m a non-athletic 190 lbs.
Gear-wise, I started with my Giro snowboard helmet, hillbilly wrist guards, and the Triple-8 Covert Knee and Elbow Pads.
I ended up trying a few other helmets, and I’m about to try a Thousand helmet. I know it’s a bike helmet, but I’m not a daredevil, and I’m comfortable with the certifications it has. Recently, I have mostly scrapped the elbow and knee pads, and just go with helmet and wrist guards unless I’m planning to push my limits. I usually hover around 12-15 mph on pavement, and I’m definitely becoming (probably overly) confident.
I didn’t get a balance board or anything beforehand. I had snowboarded recently after 15 years of not doing it, and I found that my legs adjusted pretty quickly. After getting my Onewheel, it took me a few days of aching feet and calves to get over the hump, and now I rarely notice it.