I believe that the characterization in Genesis 1-3 are accurate of our human nature. I actually think it is beautiful to see the way that from the beginning God gave us free will, and that free will still remains the same today, but we have recieved an advocate, Jesus. Being fully human and prone to sin, instead of having to fear what my sin could do to my relationship with God I can turn back to Him and be fully accepted just as I am.
Adam and Eve were no different than we are in the sence that they had free will, and they chose to turn away from God and sin. They were human.