Sixt was great! It was our first time in Iceland and the weather is CRAZY. Like, next level crazy. When we checked in, the Sixt employee who helped us walked us through general restrictions in the country (parking, etc) and also helped us figure out which roads were open/closed and how best to get to our hotel outside of Reykjavik. The car was clean, exactly as we had ordered, and great for all the conditions we drove in (snow, sleet, slush, hail, extreme wind gusts, sand, and fog). At the end of our trip, the very helpful Grzegorz made return a breeze. He actually drove us to the front door of the airport (about a 3 minute trip from the rental station) so we didn’t have to wait for a shuttle or stand in the cold. Incredible service! Grzegorz was also very knowledgeable and helpful - we will absolutely rent from Sixt the next time we are in Iceland.