Italian audio portal Audiofader.com has reviewed EastWest's Pro Drummer Vol 1 & 2.
"EastWest has created a product of great level, especially within the context of the subscription model ComposerCloud. Personally, I consider the overall quality of the kit higher than other modules for Kontakt. The MIDI groove in particular are elaborate and well organized, overall very helpful. ProDrummer a product is recommended to those who work in composition, sound and music production and need ready-to-use drum sounds that are less expensive than a recording session in the studio. This virtual quality and realism of the rhythm section is elevated to the point of deceiving even the finest ears. The excellent MIDI grooves help to give a highly realistic execution, which often makes the difference between a rhythm section MIDI (played bad) and a real rhythm section."
See review here.