KMS, R22 good machine for on your own. Does the job. Bit skittish and you have to be quick to get into the auto as there's very little momentum in the rotor system.
R44 much better. Less skittish, lots more power (especially on your own
) , lot more energy in the rotor system for autos, so arguably safer.
Can even work out cheaper than R22 on occasion as the datcon only ticks over when you pull power, whereas the R22's cost money as soon as the engine turns. Add to that the faster cruise speed and there's not much in it cost wise.
Like the R22 but I'd take the R44 anyday.