I've been using it for almost two years
It's very intuitive and easy to use but it's a pity that effects affect the global sound (bass drum, snare drum, hi-hat, etc.)
Version 1.5 brings many improvements, especially regarding the new drum kits
Good value for money. It's a pity that the Spectrasonics website doesn't provide downloadable demos.
I would certainly buy it again as well as all other Spectrasonic products (especially Trilogy, which has a superb double bass sound).