One of the classical composers that today is most prone to bad recordings is without doubt Mozart. The popularity of the composer gives an extra incentive to release average recordings of his work as it is sure to make at least some money. I own several versions of his Requiem, and while all versions have their own pro's and con's, this is probably one of the overall best.
One of my major gripes is the somewhat laid back style of the recording, it doesn't always play with the energy that I feel the work deserves. Granted, the playing is really great, has a lot of feel to it, and is overall excellent. If I want a more energetic recording of this, I can just listen to my other recording of the work. However, the greatest boon about this edition is the singing. The chorus and soloists are absolutely amazing, with great clarity and emotional range.
Regardless, if you love Mozart's Requiem, you owe it to yourself to own at least two different versions, and this one should definitely be one of those two. It is great to have several versions of the Requiem, because then you can just listen to the version you are in the mood for.