I THINK DHI appeals to more mature/elegant women, at least that's what they want us to think. la nuit is well liked by the modern/urban cool chick. they both project well and great longevity. I have gotten more compliments on la nuit but I prefer DHI. AGE GROUP is endless for both. I think La Nuit is more of a young man's scent though.
If you are contemplating a blind buy I highly recommend sampling first. I blind bought DHI last year and I ended up really disliking it. My girlfriend even made a point to tell me that it was her least favorite out of the ones that I have worn. However, I have gotten nothing but positive feedback from La Nuit even though it really didn't do it for me either. In my opinion, La Nuit is the safer of the two for versatility and if you are trying to garner compliments from the girls your age. Everyoneâ€™s opinions and tastes are different though. Good luck on your decision man.
My two current favourites with DHI in 1st place and La Nuit a very close 2nd, on some days I prefer La Nuit to DHI. To me DHI is a dry powdery scent with a chocolatey vibe, where as La Nuit is powdery too but not dry, its soft. Also, I wear them regardless of the time but do take care of the temperature, DHI is definitely not for warm weather specially the 37-45 degree Celcius I get here. But I can pull La Nuit in those temperatures and I don't know why buy it smells more moist somehow.