I bought one of those china fat bikes a couple of months ago, just because I needed something to get to work, I'm not super young anymore and a normal bike is just too exhausting (also my knees are getting worse) and while it still works, it's already starting to rust.
Sure it fun to ride now that the speed limiter has been removed.
If it decides to self desturct and explode its battery, I hope it will be somewhere where nobody I care about is at, such as work.