I have also harvested the first one, Black Jack from Sweet seeds.
I can only say positive things so far. Aroma very very cool. Very sweet/fruity, very tasty and the effect is pleasantly cerebral. The harvest has been good even if one headbud had a bit of gray mold, the others were not affected.
My Sweet Amnesia are very sativa heavy and flower 2-3 weeks longer, but are getting fatter and fatter.