The only good changes were the fact that they adapted the illusionary world, the visuals for the drama play and the fact that the characters don't dissapear with the after story, (even though it doesn't makes much sense that Sunohara comes so often to the city).
For the rest, the fact to have changed Nagisa's personality in the start, makes her character weird before the drama play. It feels inconscistent. Also, the drama falls quite weirdly even if the aftermath wasn't so badly done. (Depressed Tomoya), too bad that the end is again rushed, in comparison with the time Tomoya got depressed.
My two-cents for now.
Also, no development.