The rental car itself was ok.
Kayak booked my reservation 30 minutes away from the airport. When this was determined by the staff at Hertz Detroit airport, they were unwilling to help arrive at a solution. I had to leave the Hertz area and book through Thrifty/Dollar in order to obtain a rental car. Additionally, the area where I needed to work with the Hertz Detroit airport representative was in a closed in space, making me less comfortable during COVID.