I continue to read nothing good about G13 seeds, until I post about how bad they are, then people who thought it was a good deal and stocked up usually have to defend about how good they are even though they haven't grown them yet.
Usually the posts are pretty close, Dutch Passion Blueberry for example is usually posted as sketchy, my experience was the same. One nice beautiful plant, one that sprouted and grew to about a 1/4" and died, one that was just OK but turned out to be a male. Same setup and same everything. We'll try some more in a couple months with the next grow.
With that in mind I'd stay away from G13, I'm just going to toss mine in the woods somewhere and be surprised if anything happens. I've ordered from Skunk because their free seeds are usually ones I'd like to have, last time was Australlian Blues, a blueberry cross. Would you rather have that or some G13 skunk ?