I completely agree. I watched the movie thinking to myself every now and again "OK when's the full on mind fuck coming?" but it never really came, not for me anyway. Afterwards when I heard or read people talking about how confusing or hard to follow the movie was, I began to wonder if perhaps there was some huge extra layer of complexity to Inception that just went totally over my head. A bit more time has passed now and I don't think there was.
I still very much liked the movie though.