From what I hear, Nirvana genetics aren't quite as good as the seeds from the major Amsterdam Breeders like, Sensi Seeds, TH Seeds, Flying Dutchmen. They sell their own versions of many popular strains, and plenty of people here have stated that they were satisfied with the quality. However, if you want the creme of the crop, you should go through someone who sells the name brand seeds like planetskunk.com.