One accident (side swipe), two tows (parking in construction zone and blocking a neighbor's driveway respectively), and countless tickets.
Many renters didn't fill it up with gas after their trip ended. They also left my car dirty and left trash in it.
Many of my renters improperly parked my car on the street, resulting in countless tickets (GetAround requires renters to park it in a restriction-free zone for 24 hours, no street cleaning, etc.).
My brakes squeal now, and the maintenance light is on in my car. One of the tires also has a gash in it.
One renter stole my SD card, USB car charger, and windshield mount for my phone (I hadn't kept tabs on them so I couldn't narrow it down who the culprit was).
Going into it, I was pretty optimistic about it, but after getting towed twice, I'm feeling pretty sour about it. Their customer support was pretty terrible, too -- they took days to respond at times.
I did FlightCar for a year, and their customer service was a bit better, and their renters took nicer care of my car.