Good, bad. Any difference?

I have no experience with it, but a search of our site shows a lot of threads about it.
https://garden.org/search/inde...

I like dipping my transplant roots in mycorrhizal inoculant powder before I pot them up. I also put some homegrown worm poop in the hole before potting. It's my impression the beneficial soil microbes work in concert with the soil fungus in a mutualistic way with the plant roots.

Nhra;
I use it here in the high dessert, and get very good results when considering the environment here (exceedingly bright!)
as a fungus it does require damp ,dark and especially in your area relatively warm conditions. Here, I have a problem meeting the first two but not the last. I found a good organic mulch laid down thick takes care of that but it also means I can't till the next season if I want to save it for the next veggies in my rotation.
I.M.O. the yields I get are worth the initial cost and being the cheap b#@[email protected] I am, it's easier to let it over winter and give it something else to bind to next season!
Hope this helps.

I have used in in my lily seedlingd. Granular into the media, then periodic liquid with waterings. I'm going to add some granular as well into the soil when I plant some bulbs this spring. Then I'll be able to compare it to the already established lily bulbs. Since lily bulbs tend to have more blooms after successive years, if the first year bulbs can come close to any second year bulbs, I'll have a better idea.

I did see a British program last night. Gardener transferring potted plants to a container and applied dry mycorrhizae to the root ball before planting in container soil. Hmmm....