Never mind the bloody rev limiter. One great thing about the R22 is that when you're on the limit, there's still a couple of inches left to bail you out; in the Hughes you'd haul on the lever, get the low RPM light and dive for the bushes.
Nobody's mentioned the biggest menace to helicopter acceptance, which is noise. External noise, the kind that winds up the punters and gets them on their hind legs angrily declaiming against the excesses of overprivilege.