This is the number one Synthesizer to read the manual. The manual is well written and it saves hours and hours of frustration. Falcon's system is just that a system and it is very straight forward once you learn it, but you can't just jump in and learn friendly. Spend a few hours going through it and you will know Falcon very well. Watch the UVI Tutorials and I really liked Venus Theory's pad tutorial.
Falcon isn't the easiest but it is the best-documented one to learn how to use.