Knowing that this is an extension and not a stand-alone I have been surprised that the start of the first missions is so (unnecessarily) tutorial, and that the difficulty of ALL OPERATING be rather average, even in Hard.
The scenario meanwhile estdisons (very) far from the construction of a Baldurs Gate or even The Witcher in a completely different genre. But although this is rarely on this quon expecting a Real Time Strategy game, in this case this lack is much felt.
The missions are varied number 20 and their execution is very fascinating and malgrés negative item on the scenario, the gameplay level continues sauce anyway to take well. Still keeping in mind that despite a traditionally rich solo is multi Starcraft comes into its own.
The cinematics, as always with Blizzard, are in a separate category, and some are downright worthy of big Hollywood productions.
The multi senrichit few units and additional maps and new features mainly sarticulant around the replay.
All in all this extension does not change much the basic game, and it is in the continual final game of the experience of adjustment, especially in multi. In other words it's "more of the same" and thinner.
In short, nothing revolutionary in this extension, fans will definitely get their money, others a little less, for general impression it leaves, it is perhaps slightly but certainly below that of Starcraft II Wings Liberty.