As it name implies Xtrem Tweaker focuses on very unusual presets with lots of crazy real time controls (Wheel, AFT, Velocity, etc. for each preset).
The 300 presets can be purchased at once in the Grand Bundle, or in 3 separate thematic banks if you prefer (100 thematic presets per bank).
Intro price for the Grand Bundle is 19.90€ (regular price is 29.90 €). More info and audio demos can be found on the Xtreme Tweaker page.
Video Teaser: Xtrem Tweaker Teaser