Morphiza

Morphiza is a very nice little freebie from Krakli.
It has a nice little GUI, not too may controls so the danger of getting incurably confused is rather low - and doing your own presets easy, has as starting point 16 good presets, no manual - nor is it needed, and cost nothing.
It is supposedly styled after the transitor organs of the 70s, but since i don know the originals, i can say anything about the "quality of emulation" nor does that matter, cause it sounds anyway great - a clear and transparent organ with some "roundness" and character.
It cuts through mixes well, probably works with every kind of music, uses not too much CPU - to put it other way: it is very good and usable !
Try it out, unlike many other SE synths you wont notice its heritage, and thank its author for making such a freebie.