I met this INFJ at work. She didn't strike to me as interesting or deep person when I first met her. She seemed just ok. That would have been the end of that story if I didn't have a habit of talking to people a lot, talking to everybody
a lot,. So, I kept on going to her room at work to talk about things a few times a week or something like that. I talked to her about lots of things and even weird ones. After some time of our conversations, she started to like me or to think that I'm worth of knowing. (She made that decision).
So, from that moment on, she started to open up to me and I was totally amazed what I saw.

She was awesome personality, really deep and really interesting. In fact, she is one of the most interesting people I have ever met. This INFJ had the most astonishing insights of people. She would have been excellent therapist. She saw to the core of people and she was really good in seeing people’s problems deep inside. She really used lots of Ni and it was really great to get to hear her thoughts. She was also intelligent but preferred that people didn't see that. She wanted to keep herself protected so only few knew what she really was like. It's really amazing experience to get to know as fascinating person as her. I really rate her high and appreciate her as a friend.
One of the learning’s of me meeting her was that it is always worth of looking forward behind first impression. Sometimes first impressions are right about people and sometimes they are not. So, totally amazing to find such a person underneath! Based on that experience, I value INFJ's extremely high!