crop king white widow?

Anyone grown this strain before.. if so how did it compare to other white widow strains.. and is it as potent as they claim?
http://www.cropkingseeds.com/products-page/strains/white-widow/

They sell these seeds at local head shops where I live. I have always been curious about them but I've read 2 posts of disappointment with crop king. One here and one on another site. Both people had germination issues and both were blamed by cropking customer service. There's really not much info about these guys on the web.

I'd say there are better, safer and cheaper options if you need to keep it Canadian.

For the best WW,I'd go with the original,Mr. Nice Black Widow.one of the best strains i ever grew.