Personally I am glad they got rid of Tennant, yes he was quite exciting when he became the doctor, but the longer he was in the more angry and just became a great sook at the end. I think Matt Smith brings alot of that excitement back to the Doctor Who series.

I also really like Amy Pond she is a great Doctors companion, not only is she young and attractive she seems to have a closer relationship with the doctor. I though she was alot better than Marther or Donna.

As for the villians;
there is nothing wrong with re-colouring the daleks, resizing them or keeping there original weapons, I think this makes them more definable as seperate character than just "the Daleks"