Cons: My online rental was completely different when I went to the store to pick it up (in price, more than double what I was told I'd pay online, and in the vehicle I rented, but that last one went in my favor), I couldn't find the rental location because the address online was incorrect and the real address was not related to a GPS location, and it was the poor woman's first day so she didn't know how to help me and thus I called customer service in the middle of the AVIS rental store. I had to fight to get my original price. The rental online also quoted me prices from Lafayette, Louisiana, even though it said my rental price was Lafayette, Indiana and the store number AVIS was given for my pick up was in Louisiana.
Kayak needs to update their information on rental locations and prices. I will not be using Kayak or Avis rent a car again.