The car "doesn't know it's there" so no risk of impacting the warranty. And it's legit just clips onto the wheel with the built in magnets so it would take all of 3 seconds to remove for a service appointment. I took it off to see the difference between driving with/ without it... completely night & day. Even without FSD it drives around town, on the interstate, and even rural roads with no intervention needed at all. You just have to be ready to stop at stoplights/ signs, or slow down to turn from one road to another. As long as you're staying in a lane for a while (any road type) just engage autopilot and relax. She holds the lane perfectly. I also found out it limits the speed based on posted speed limits if you're not touching the pedals, but if you want to go faster you can step on the accelerator but still don't have to steer the car.
Took my girls to the grocery store today and parked close to the doors. Turned on the boom box feature & let them fart at strangers. My girls and most of the random shoppers had some genuine laughs. It's the little things like this that make the car worth the money to me. Wholesome entertainment and family time all while bringing a smile to random strangers