They can be intimidating. The Technics F5 has seven voicing "channels" that can be routed to either of two keyboards. With full MIDI compliance (and maybe a little more), it has over 100 different voices (sound component profiles). Except for the "Solo" channel which is monophonic, everything is polyphonic which means you have a fistful of fingers making chords as well as melodies. And it is a full organ, meaning a pedalboard for notes. It's not an AGO model, though (American Guild of Organists), so only 25 notes on the pedals vs. 32 for AGO.
The first organ I ever played was a spinet model that had something like five or six voices for the upper keyboard, three or four voices for the lower keyboard, and one pedal voice. My F5 is a full console that has over 200 controls including the automatic drum set, automatic rhythm accompaniment, and automatic voicing sequencer. In fact, with this model I can literally play a duet with myself by pre-recording the first sequence and then manually playing the 2nd sequence to go with it. But I play it straight up and don't rely on the automation. I learned to play "for real" and don't use the fancy-schmancy stuff.
That's actually why I now play a Technics. The Lowrey instruments were GREAT until they came out with a new model that had so many bells and whistles that if you really WANTED to play it straight, you had to turn off over 30% of the organ, and some of the accompaniment effects were only available with the automation.