Pros: The good news is that when I arrived at Portsmouth Airport, and learned that Avis wasn't on site and would not be there to pick us up to deliver us to their site or back to the airport when our trip was over, it was very easy to cancel the reservation.
Cons: If you are flying into the Portsmouth Airport and need to rent a car, the only car rental agency on site is Enterprise. Having never flown into the Portsmouth Airport, I had no idea that Avis was so far away, with no shuttle bus to or from the airport.
5 Feb 2017
Cons: The overall cost was supposed to be around $150. Which kayak already only said $70 but I'm under 25 so I figured there would be extra fees.. After 2 days that I was supposed to have it I return it with no problems. A few days later I get charged $290 from Avis.. I called to try and figure it out and they said everything is final and ended up hanging up on me. Needless to say I will never go through them again.