I don't think it's changed my view of myself that much...
I had no idea how to type myself at first; I just knew I was N. The S/N divide was helpful in terms of accepting my differences, but I went a bit overboard and became pretty biased against S types for a while, probably because I was jealous of them for being more normal.
When I thought I was INFJ, I never felt that close to other INFJ types, and didn't think the description fit me all that well. So I figured it was a flaw with MBTI instead of a mistyping. But even now that I figure I'm INTP, I still don't think I fit entirely well -- especially considering the prototype.
My dad is also INTP, and while I see tons of similarities in our thought style, our interests and skills have diverged over my life. I focus much more on psychology than most INTPs, it seems. I see lots of aspects of my mother's personality in myself, too (I recently figured she was ISFJ) -- I think I got the people orientation from her.
Anyway, at this point, I don't think of myself as much different than I did before I learned MBTI (except differences in maturity, but that's outside the realm of personality psychology anyway). MBTI cannot explain most nuances in my personality -- and I think I've strayed far from the prototypical INTP due to nurture.
I guess it's nice to be able to label my extreme analytical and abstract nature, but that's really all there is.