40 years ago, as a fixed wing pilot, I had the opportunity to fly a Bell 204 - Very stable and with a bit of coaching was able to land it OK. Take-offs were not all that hard.
A couple of weeks later, I had the chance to fly a Bell 206 Jet Ranger. I had no chance. I just don't think it's possible to successfully fly something that sensitive without some training.
I could not believe how different the 2 helicopters were.