I gotta say I found most Amsterdam seedbanks arent as good as many others... well I guess I shouldnt say that, greenhouse and dutch passion left me unhappy, serious seeds my expectations were too high, it was good but not great from what I tried, Barneys was good...
All I'm saying is don't limit the purchase based on where they're from...
I have no problem recommending emerald triangle seeds, never been unhappy with a plant. If it lacked in one area it more than made up for it in another. Also people kinda call em the knock offs but all the Nirvana I've tried was good.