It's not just the plants which are something else I believe. For example the Greenhouse Trainwreck and the Arcata cut Trainwreck I've had are COMPLETELY different. Whatever Greenhouse is claiming to be "Trainwreck" is different than the real stuff. I've ordered from Greenhouse for a while and have seen a steady decline in their product quality over the years. They used to have strains with amazing highs, now they have stuff like "trainwreck" that grows a very cool plant but has a rather "unrefined" high.
So I guess I don't discount Greenhouse completely but as of late their product has been poor in comparison to what so many of these new, and old school breeders are doing.
For comparison grow some Mandala Genetics (TGA too!) along side some Greenhouse strains. I can promise you that you will be more impressed by what these new Spanish breeders are doing with land-race genetics.
To me it is about constantly improving and working with cannabis genetics to produce the highest quality plant AND smoke. While at the same time providing reasonably priced quality seeds. Some feminized seeds are well done but I think a good breeder should also provide improved genetics with regular seeds as well.
Good luck to you all in your search for the best seeds