Did not get a chance to try this in Japan when I was on holiday there, but the Gyudon here at their Suntec outlet was yummy! Generous portion of fatty beef slices that were tender and flavourful, sat on a bed of piping hot rice. Comfort in a bowl indeed! I do recommend topping up $2 for the Green Veggies combo as the sauteed kang kong is so garlicky and shiok! For the combo, you also get to choose either a drink or miso soup. Lastly, there is no GST or service charge here too!