I don't know enough people who are into MBTI. But those who are seemed to accept it readily when I said I was INFJ. I don't put so much stake in that though because really almost no one I know is into it to the extent that I am.
A few other friends also tested INFJ through the Humanmetrics test. However, I have since heard that this test is notorious for giving an INFJ result. I think one or two of them are probably INFJ, but one is more likely ENFP and another is more likely ExxJ.
One thing I do think is noteworthy is that the friend who probably resembles me more than anyone else I know is, as far as I can tell, a definite INFJ. I think she is enneagram 1, which would partly explain some areas where there do seem to be differences.