I was invited to an interview and chose my interview time online. When I got there I was told that the lady who was supposed to be interviewing me wasn't there (not sure why they didn't reschedule for when she was available). I was taken to the staff area by the Supervisor and she asked me a few questions (nothing that wasn't on my CV) about availability etc. She noted my answers down on a scrap of paper and then said "might get back to you, might not". The whole process took about 5 minutes and after preparing for a proper interview I found this experience really disappointing and unprofessional. Haven't heard anything from them since.

Very impersonal. All done online and the logic between what constitutes a good or bad answer is totally unidentifiable. You would have better luck turning up in person and asking if you can hand in your CV and interview in person instead!