If you can start it, you can probably fly it.
In my opinion, not quite.
Have witnessed a 604 start from the jump seat ... almost a 'press one button' to start.
I think learning to fly, and the flying, would be just a bit more complex
I seem to remember being told they were quite difficult (impossible?) to trim to hands off when being hand flown - making it a little more interesting when down low (in less than perfect weather?)