I wear perfume every day, but I'm a loyalist when it comes to fragrances and CK One has my heart and soul. Occasionally I'll layer it with a squirt of DKNY Be Delicious, or Davidoff Cool Waters, but by and large I like the simplicity of the maestro's signature fragrance.
The other problem with trying new perfumes of course is that they are a very expensive item to get wrong. No-one wants to be stuck with a bottle of fragrance which, while smelling amazing on your sister, smells literally like toilet water on you. (True story; Eternity smells disgusting on me).