I wouldn't recommend them. I have heard of a couple of negative experiences and I also see they directly copied and pasted information taken from several care sheets on the web to make their "hobby notes" about a species. That is generally considered in poor taste if you don't ask permission. I know they didn't ask permission to copy and paste parts of my M. stelzneri article and I doubt they ask permission for parts I recognize they copied and pasted from the care sheets of others either.