What responses/reactions do you have to the chapter one's context?

I am very intrigued and interested as to how Primo Levi has written the first chapter. After seeing films such as Schindler's List and other such Holocaust movies, especially with Auschwitz, I would have imagined the descriptions to be a lot more graphic in terms of the treatment of the prisoners as soon as they arrive in the camp. The Nazis obviously were very cunning with the treatment of the prisoners at first, as they were able to keep the secret of the killings in the gas chambers for a large amount of time. In fact, you could argue that this chapter sees Auschwitz as just another prison camp, however it really is one of the worst parts of Nazi Germany.
I find it fascinating and also horrific that in certain situations, your fait (whether you live or die) was decided by which side of the train you stepped off, however the prisoners did not know this at this time. This to me sums up the Nazis - there was no reasoning behind what they were doing and their beliefs were so crazy and unfair.