I think Freud is rightfully remembered as a person who definitely shook up our understanding of psychology and sex in a healthy way, though at the same time since his theories were first espoused, significant criticism has been brought to bear on carrying his theories through to their full conclusions. I agree with #2 in being rather suspicious of any theory that attempts to neatly pocket the human psyche into distinct stages through which it progresses. Maybe it is just me, but from my understanding humans are much messier creatures than that!
I guess that one of the points upon which I disagree with Freud regarding psychosexual development is the strict interpretation of specific stages. I think that that there is too much individual differentiation within the human psyche to be reduced to such strict and defining stages. I also think that had Frued been able to assess such theories from different points of view that were not as present during his time, his thinking might have undergone some level of change. For example, feminist forms of psychological analysis were not as present for Freud during his time. This would have cast a challenge for him and I believe he would have been open to modifying his theories to account for this new element. The fact that Freud was a strong advocate in not being able to reduce everything to specific formulas, but rather revel in the idea that analysis of the individual is able to be conducted with a sense of psychological differentiation might have been something he would have been able to appropriate in his understanding of psychosexual development.