This is definitely one of the best VA synth plugins around. I wish I had tried it sooner.
UI: Well laid out. One complaint is that some of the toggle/ increments are unneccesary or annoying, such as having to click the tiny green led next to Gate or Delay to page the panel. Would be simple to allow clicking the title to perform the same function, and a bit more intuitive. Stepping through oscillator types is also a bit inefficent as well as being inconsistant. Clicking the led next to oscillator type does not switch to that type, which doesn't make sense considering how the Gate/Delay page button works. These are minor gripes, and once acquainted with these quirks, patch creation is a breeze. Morphing is extremely easy to use, and the way morph parameters are presented is truly an innovative approach.
Sound: Awesome! Absolutely no complaints here. It can range from soft and sweet to loud and grating, which is exactly what I had hoped for.
Features: Excellent array of features. Morphing is an excellent feature that Discovery does extremely well, and allows for great expressiveness in performance, as well as being eay to use and visualize. Being able to utilize up to 4 layers is a great method for creating complex patches. The morphable trancegate is awesome, and the filters are excellent.
Documentation: Covers the basics and includes bookmarks. Two thumbs up!
Presets: A vast array of presets are included with Discovery. The sheer number shows how flexible this synth is.
Customer Support: KvR forum exists.
Value For Money: Skip eating out for lunch 15 days in a row and Discovery can be yours. I'm extremely pleased with it, and would gladly buy another at the same price if it were hardware.