Many good observations here pro & con. My personal experience is that
when I obtained my helicopter license in 1981, all my autos to that
point were with power recovery. My first full touch down auto was a
180 full touch down auto after an engine failure at 500' agl. I landed
in a bean field & didn't put a nick the Bell 47G2 I was flying. I was
very fortuate that I was in a somewhat rural area. There was not much
to hit except for the ground. Everything happened so fast, I just
reacted. I had maybe 60 hours total at the time. I was far from a hot
stick, still am for that matter.

Given a choice, I'd do full touch down autos but not in my helicopter.
Ever price new skids? I'll pass on doing full touch downs in a R-22.
In fact, I'll pass on doing anything in a R-22.