While I've done it countless times simulated (both in the aircraft and simulator) I've never had an actual engine failure. I keep expecting my first one on every flight, but it hasn't happened.
If I have any advantage, it's that I'm flying an S76A++ with plenty of power, and usually relatively lightly loaded, so I can often hover OEI. That partially makes up for doing it in the dark. My method works in training, but I've never had to try it for real.