ive grew , aurora indica, the yeilds were great got 6 females out of 10, white russian, 4 females out of 10 very potent smoke, jock horror 7 females out of 10 good yeild and good smoke, so yeh i would recomend them good for begginers and amutures but pros wiil go with differant seed banks as the nirvana strains arent very uniformed and i found that not all plants harvest at same time ,with the aurora indica there was a 2 week diference between the trichs looking ready to harvest on 2 of the plants , the postman.