Pros: My wife was looking for a rental in California and multiple tabs were open in her search.
Cons: The Kayak site included "California MD".
She hadn't noticed and books a fair rate. The problem was that we weren't going there! Neither Kayak, NextCar nor the actual rental car place in Lexington Park would cancel the transaction even though it was a week away.
Cons: When I dropped the car off it was about $40 more than my agreement. The agent said I was charged for miles as well as a drop-off fee but I wasn't quoted on the miles at pick-up. The Richmond agent reversed it after looking at my original agreement.