It was easy and friendly, had to do two demo classes, one pretending to do it in person, another pretending to do it online. It wasn't a bad experience at all even though I was not given a job offer.

I interviewed in 2014 from the US so my interviews were all online. There were two interviews, the first focused on why I was interested in the job and the second was a demo lesson with spontaneous topic or question from the interviewer acting as a student.