This is more of a preemptive "let's hope they don't mess this one up" type of review. I think anyone who is a fan of this series can rightly declare the accountable movie studio parties as largely inept and/or unwilling to strive for the greatness we have come to expect from such other franchises like LOTR. Peter Jackson constantly fought for the proper budget and creative control that he knew was necessary to make a historic movie trilogy.
They only had one shot at this and besides the 1st 2 movies in the Potter series, it is blatantly clear that the movie studio has not even attempted to spend the money and/or time that such a franchise deserves. I, however, remain optimistic that they have simply been biding their time and have treated movies 3-6 similar to the 2nd movie in the Matrix trilogy. That is to say, they are simply there to connect the beginning to the end -- nothing more, nothing less. And that in and of itself, gives me hope.
Also, given that they have split the 7th movie into 2 parts is a sure signal that much more time and effort was put into the last installment in the series. I am cautiously optimistic and looking forward to this movie release. However, let's hope they don't mess this one up.