I recently bought 5 seeds for $40 from Nirvana and 0 sprouted. Notified them and am waiting to hear back.
Look at my post "Bunk Nirvana AK48 feminized seeds" in the Seed Review forum for a couple others with similar experiences... I also started a post with same name in this forum yesterday with mixed responses from folks.
I don't have enough experience with them to say all their seeds are bad or anything, it just really sucks when ALL of the seeds you order do fail (I started 12 bag seeds while waiting for Nirvanas to sprout, and all 12 have sprouted and growing perfectly).... I'm looking at purchasing replacements from Attitude.
Good luck with your order....