The amount of negative reviews is crazy..maybe I got lucky? I booked through holiday autos because the rental rate would have been 3 times more if booked directly with Avis. I read the fine print thoroughly so I was prepared when I got to Avis in Dublin to pick up the car. I declined insurance coverage when booking online as my credit card covered the insurance. I had a printed confirmation of this from AMEX that i bought with me and was accepted by Avis. The process was very seamless, I had no problems with the car, and wasn't charged any hidden fees. I believe many of the negative reviews here are because people didn't do enough research before booking. Make sure you read all of their conditions and do your own due diligence. Regardless, I will be using Holiday Autos again for my next rental.