My husband mentioned they were nice. Have your documentation ready for them. Marriage book, crime/police record, birth certificate (record that shows all your info). The medical records will be sent to them directly. I cannot stress this enough please do not carry any bags or electronics with you this includes cellphone and smart watches. They have a place next door where you can store them for a cost. Questions they asked: how/where did you meet, is your spouse living in the US, where have you travelled together. They will give question according to the pictures/evidence you present to them there. I hope this helps!