Has anyone uesd KC Brains from ATTITUDE? They are really cheap. Are they any good?

Nirvana seeds are cheap and they're legit, I've grown them but idk about KC Brains tho I've often wondered myself...I'd say they're legit cuz they've been around for years I remember seeing their seed ads back around '99-'00 timeline so they been around for a minute.

I've seen a lot of people swear by his Mango and a few of his other strains... I got some of his KC 45's a little germination issue when compared to the other breeders strains I have germinated and a couple of untimely deaths from what was probably my fault... The plants I had/have although just seedlings were and are showing attractive and strong uniform growth..