It is a classic, I remember Bell showing it at YVR early in its model life.
But better is now flying, the Bell 407 which does not have the teetering rotor design.
Helicopters are tricky to fly.
Pros do and precisely, an OHL pilot was renowned for positioning chunks of transmission towers within 6 inches. (Scary job was people strapped to lower part of tower ready to insert bolts to secure it.)
Nervous-wing machines I called them when I worked for OHL. Require maintenance. One OHL pilot I met had a Super Puma roll over on liftoff, fortunately survived curved blades trying to go through roof. An actuator or such had failed to disengage on shutdown, helicopter had been moved between landing and liftoff - it immediately banked to fly the heading it had shut down at.