It's quite legit! Has the same silky custardy texture that the usual restaurant versions have, just that I was having it cold (was too lazy to heat up LOL), but it was still really yummy.
Heh, perfect for those days when I just want to have sashimi, some cold edamame (available from the same mart, just wash straight out of the packet and sprinkle some salt!), glass of ocha (or sake). Yay. Simple fuss-free meal done.