A game you could play,or not....
The good improvements are that the graphics have improved a great deal ! The character models and extremely lively,and Hogwards is fun to explore through it's beautifully detailed corridors.The shadows and effects are great too.You now have to cast the spells yourself by moving the mouse in a definite way(say up-and-down,rotate clockwise etc.)This accounts for a lot of fun as you have a variety of spells divided into combat and non-combat.You will learn a lot of new ones as well ! You can play quite a number of unexpected characters like Sirius Black and even Dumbledore himself,but not as Ron or Hermione !
Now the bad parts-the story line is impossible to follow ! If you haven't read the book and watched the movie(which I have done both) you will be very confused and it will be difficult to follow !
The huge castle of Hogwards is endless exploration,so which is fun but the endless back-tracking makes it very frustrating to visit places which are far away.You can wander freely,doing little tasks,and complete the missions.
Overall the game is good,but as I have said,isn't perfect .Enjoy you will,exploring,doing tasks,duelling,but there is no Quidditch ! Come on,guys !
I think 8.4 would be the perfect score for this newly-developed but still-needing improvements Harry Potter and The Order of the Phoenix !