Quote from Tiro of Meletis »Japanese card quality is superior. I have a Japanese Thassa that has this glossy, sturdy coating which makes the artwork look vibrant. The coloring on the card is beautiful. My English Thassa is dull, flimsy, and cheap. I've always been disappointed with how English cards have this thin, dry, cheap feel and lack that sturdy gloss that Japanese cards and some supplemental products have. I have noticed though that this quality for English cards has been improved.
I've bought plenty of foreign booster packs over the years, and the Japanese ones are definitely my favorite as far as the quality of the look and feel. The EU printed ones are a close second, but both very much put the US-printed ones to shame.
I'm very hopeful that this brings the US cards up to snuff!