I may be a bit out of date but why not? Provided that you can fly a simple instrument approach there should be no problem? The NDB minima are such that you shouldn't get into trouble, either you see it or you don't and if you don't there is a nice big safety margin. Have done the NDB approach into Durban in a B744 in poor viz but would have had a job to explain had I refused. (Durban just one example).
Have heard some really interesting conversations pilot to ATC at Amsterdam when the wind is from the West at around 10 to 15knots and ATC are using R/Way 18! Usually early in the morning.