I've had the citrus one as well ... lovely stuff! On the face of it, it's no different (in formulation) to the old red, yellow, green and blue case soaps but the scent seems to carry much better with this generation.
I would compare the various soft soaps coming out of Italy from TFS, Mondial, Extro Cosmesi, RazoRock and The Goodfellas Smile. I think I have most of the Citrus versions.