I've honestly had better luck with my local composting facility than buying bagged stuff. Anything that has popped up from the local place has been climatized to my locale. So all the microbes are already established. Anything folks may buy thats bagged comes from all over and still would need to establish a healthy microbiome. I cant complain. Ive got morels growing now! We do get a few ants in the spring (its when they swarm and are looking for nesting sites)- but nothing crazy. Plus they feed all the little newts and salamanders that live in my yard!