Please look after yourself and do not trust a word they say until you have signed an offer and be prepared to have your time wasted and not treated with human decency. After 4 rounds including an extensive final task presentation, I was explicitly told I was the top candidate at the end of the hiring round, built up and praised as though I was clearly about to receive an offer only to be completely ghosted by the HR rep. No call back, no further feedback, no updates or response to my follow ups asking for a final decision. I have never experienced such poor professionalism or completely lack of respect for my time and effort from a company. Disgraceful behavior and ethics.