The process was quite simple. They only asked if I was sure about purchasing insurance. Seeing that we had a lot of luggage, they suggested upgrading to an SUV for an extra 25 euros per day. We got a Volvo XC90 with a navigation system, which was incredibly helpful. Otherwise, it would’ve been difficult to access Google Maps with local data, and Baidu Maps isn’t very useful here. Make sure to bring your domestic driver’s license and its translation; otherwise, they won't include it in the record. I forgot mine and almost had a serious issue, but fortunately, someone else had theirs.