It really depends. A road trip in a car share can cost as much as a monthly lease payment, yet due to the way no one user feels responsible for the car, the tire was showing 4 different colors of threads. A trip to ikea can be really burdensome if the front right brake has a soft lock or if the bearing has gone. Or if someone's left the car with barely any fuel in it for that one time when the booking was made to make a tight deadline. For odds and ends, it can be perfectly serviceable, but I've had those three and some other less than savoury anecdotes in my 5 years of using a car share.