Yes I've always been a big fan of the happy frog. My only gripe is it tends to come with free fungus gnats especially in the spring and summer months lol!
A couple of very reputable growers I know locally said they had a 20% increase in production with canna over happy frog, so I decided to give it a shot. They don't run autos though so maybe again it's just too hot a soil for most auto strains..
Today 3 of my fruit auto freebies popped ground, so I'm interested to see if they do the same thing.