It was more intimidating than difficult. I have been in interviews and have interviewed other people but found it very intimidating to a point that I was having a panic attack mid interview. I passed and was given an assignment . I spent sleepless nights working on it and there was no further comms after submission even after I followed up which I found very rude and inhumane. I wasn't given any feedback regarding my assignment. I think interviews must be handled by more than one person including a qualified HR person.