How it's an improvement
The personal helicopter is an improvement on current aerial technology (Mainly in helicopters) because it helps farmers also reach areas where a tractor would not during spring. Also, another slightly modified version of the design is made to save people via aerial rescue missions which will be both easier, and safer due to it's smaller frame being able to reach tighter spaces in between ravines or forests which normal helicopters and planes would not reach. These can also be used for racing which again, will be safer due to when the personal helicopter is about to crash or the motors might give out, it will maintain flight patterns to bring the pilot to a safer place to land, or crash in a more dire situation. Plus it has more agility than normal helicopters and is much faster.