Bad. Felt unwanted all the time.
Seems he was learning a lot from me rather than taking interview for the open position.
After 1hr, I took the courage to ask him if I can have a seat. He was expressionless so I quickly grabbed my seat. Then comes the golden words, he said I lack knowledge and not the right candidate for the open position.
While leaving, I checked with him about his career and it was only IT with no functional background.