As a person who devoutly played FIFA 10 through 13 - this version is broken. Badly.
My comments pertain to higher level playing and on the internet. Playing the computer on easier levels is a waste of time.
They attempted to make the game more realistic, but in the end made the game more sluggish and almost impossible now for play through the middle - crosses and headballs are overpowered, 9 out of 10 players online abuses the over-the-top ball and amazingly the conversion rate off corner kicks has got to be close to 75%. Don't concede a corner - it's as good as conceding a goal.
Then you factor in the scripting and handicapping for weaker opponents and in the end the trend towards sucking the enjoyment for elite level players that started with FIFA 13 has just continued with 14.
Don't buy unless you are hardcore.