I don't know why so many people here say bad things about this company, I had a great experience with them, and their ratings are also pretty high on other websites. Anyway, I booked my rental car in Iceland through their website, everything went smoothly regarding the reservation and pick-up. I also bought the full protection insurance from them, which helps cover the deductible in case there are damages to the car. Luckily I did that! Because I did get some scratches on the car, and the repair cost was close to 1000USD. I filed the claim and supporting documents to rentalcars.com via their website, and they reimbursed me the entire amount within two weeks! Honest and efficient company!