Important question is, do the seeds end up being "as advertised" in the end. Seeds be seeds. As long as they are viable, they're going to give you a plant. Given that the internet is what it is, and people are what people are, I'm not so sure I trust too many vendors out there.
Back in '03 I bought Niagara from Dr. Greenthumb. It was a legit strain that I mothered for the better part of 10 years before I had to get out. Still have some pollen (viability tbd), but the beans I froze are long gone, lost in a basement flood. Dropped them a line a while back to see if the strain was still virgin (sure it was!) and available but never got an answer.
Question @ATM. Am I safe to assume you're growing autos? I'm looking at a strain at CropKing (auto), to get my fancy new grow room producing something quick (while I get a mother ready), but I'm nervous as hell about laying down the cash for what could end up being bag weed. How was your experience with CK beans?
I figure I can knock off two, maybe 3 auto grows while I do what I need to get a crop of clones off.