My experience at K2 Bistro started out excellently with their nuanced concept of ordering via tablet coupled with a flat rate cost ($20 incl tax) for all you can eat. However, most of their food was mediocre and bland with the exception of their edamame and ice cream. The lunch took a turn for the worse when I commented to a friend I thought the ice cream was mochi (a traditional Japanese dessert) to which the waitress snickered in an overtly rude way. The final straw occurred when the same waitress, unsatisfied with my tip, demanded I rerun the transaction and I quote "give me more $$". Having worked in the service industry, I understand the desire and necessity for tips, however, she conducted herself in a completely inappropriate manner that made my dining experience feel more like a shake down rather than a meal. Had the service been superior not only would I have tipped more, but also I would have awarded them more stars for their mediocre "sushi".