For graduate level position, not on the graduate scheme, one interview for one hour, discussed experience and knowledge of the company and engineering. Quite straightforward and no hidden tricks, empathetic interviewer.

Contacted by recruiter but then heard nothing for a few weeks until they reached out to me via phone saying they had technical issues. We talked and they told me that they "work for me" and really want me to get the job. Ultimately it wasn't a match but she said the team is opening up another req that would better suit my skillset and she'd let me know. A month goes by, I hear nothing. I reached out about another posting they had (assumedly the one she had mentioned earlier) and I didn't receive any response. Calls were forwarded and messages weren't returned. Struck me as really unprofessional.