I've grown every breeder on the market and autoseeds and mephisto are the only two I use now. But for me I like autoseeds better. Their yields are better than any breeder I've used and their veg and flower cycles are how I like my autos to be. Mephisto has great super potent genetics as well but they flower very early and therefore don't yield as much. But thats what most auto growers like. And with mephisto i get alot of different phenotypes. Witch sometimes works out good but other times not. With autoseeds I rarely get a diffrent phenotype then last time. Therefore I can get a good baseline of the plant and tailor my feedings and grow methods to it. Everyone has their own preferences of what they like. Mine align with autoseeds more than mephistos I'm not knocking mephisto their top notch in the autoflower genetics game and have a lot of different strains to choose from. But autoseeds holds my number 1 spot by a long shot.