I grew Seedsman White Widow once and I was fairly pleased. It is one of the White Widow knockoffs that have a higher percentage of sativa in it than others, more than the original, Black Widow.
It is not as good as the original genetics but for the price you pay and what you get in return for your money I would say it is a good value. The high was good, the yield was respectable and it was not finicky too grow. It was not the tastiest herb I have ever smoked but taste is never as high in importance too me as potency and yield, so it was still cool and the gang too me.
Just don't expect it to be as good as the original and if you are not totally pleased don't wrongly assume that the original must not be as good as people have said it is based on what yours might turn out to be.