Is Sixt really that bad
I'm will be hiring a car next year from ATL. I normally use Avis through BA Holidays as I have "President's Club" status. Now, thanks to my Marriott status I have the Diamond level with Sixt. The prices from Sixt look very good, but the reviews on Trip Advisor are terrible and are putting me off switching from Avis. Can anyone here convince me to switch to Sixt?
TIA