The supplied patches celebrate the local colour and stylings of America, Bulgaria, India, Syria and even Wales, and each region gets at least a couple of patches that are either chromatic or in kit form, with diferent vocal licks and phrases available on each key, plus extra articulations accessed through the use of modifier notes.
All the vocalists are female and the patches are well programmed. You wouldn't want to use Voices of Passion to replace a real-life singer, but if you ind yourself using a lot of 'world' or ethereal vocal samples, you'll probably be satisied with the range of sounds on ofer.
Those after a more budget-conscious solution should check out Apple's Jam Pack: Voices, which, while not as sophisticated, covers much of the same ground.