I'll concur with Pat on this one - I had constant attitude autos at 40 knots demoed to about 15 - 20 feet at night (when the grass comes into view).
Logic was at night you didn't want a flare because you couldn't then judge the last bit to end up level.
During the day, I'll take a standard auto with flare to get RoD and speed to an absolute minimum. And if I'm honest, I'd rather be in a Jettie or R44 when it does happen . . .