The interview process was short and very friendly. Since I had good references, the classical interview approach was almost fully skipped.

There were three stages, and my overall impression was: "Wow, I should have come here earlier!"

People were friendly; it felt rather like a discussion between friends than an interview. If you were recommended by an employee, your chances of getting in are higher. However, this is not guaranteed if it turns out that, for example, you don't have the required technical skills or your English is below average.

ABAP related test question. I've never seen ABAP before, so it was quite tricky.