I was referred by an existing employee. I had a short (~15 minute) phone conversation with a recruiter that basically consisted of me reading my CV to the recruiter. The recruiter was enthusiastic - she couched her language and said while she couldn't guarantee an interview she had a good feeling and would meet with the hiring manager, share my CV, and get back to me within 5-7 business days. She then promptly ghosted me... it's been a couple months with no contact. If I simply hadn't been selected there would be no hard feelings, but promising to follow up then failing to do so rubbed me the wrong way.