PSA they also sell this 3 slices of premium wagyu kushi, you can tell from the marbling it's serious business, definitely trying that next
Proper wagyu, for 4.9nett that's enough said.
Although if I really had to nitpick, compared to the much more fancy wagyu places, this was slightly drier.
Definitely worth a try
PS Not quite sure how they create this product, it's too neatly square to be done by a human quickly
PSS I went at 630pm on a sat and got really lucky, there was no one queueing and after I bought suddenly 4 ppl were after me queueing. And after those 4 they ran out of this kushi