Avoid like the plague.
We hired a van to move house and received a phone call an hour (!!!) before we were due to collect it letting us know that they could only offer us a car (obviously completely unsuitable for our needs). We never received a satisfactory explanation of what went wrong and had to wait close to a month to receive any form of response from their official complaints department regarding money we had paid for a vehicle we weren't able to use (this wait is well in excess of their service level agreement).
Customer service at the Bristol branch has also been pretty appalling every time we've used them. Unprofessional, unhelpful, and yet very keen to bad mouth other customers (often within ear shot!).
I cannot stress how low my opinion is of Avis. Bristol has plenty of car hire companies so if you want some certainty that your booking will be fulfilled, and that staff will treat you with some modicum of respect, avoid Avis! read more