Really nice staff, good variety of board games available to play, and nice atmosphere! But in terms of their bubble tea, I think they need some improvement. I had grass jelly as a topping one time I was there, and tapioca the other two. The grass jelly had clumps of starchiness.. I don't know if it wasn't made properly or if it went bad but I could feel the grains in my mouth. The tapioca didn't taste fresh. They were bloated/over-cooked so they weren't chewy. Also I'm used to tapioca that has a bit of sweetness to it, so this green grotto's tapioca tasted plain to me. I'm glad they opened a bubble tea place close to where I live so I will continue coming here nonetheless. I just hope they can improve on their bubble tea :)
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May 6 edit - dropping it to 2/5 from 3/5. Their tapioca in bbt is consistently clumpy, bloated, and tasteless and the food dishes overpriced and bad.. we had a bowl of sugarcane fresh milk grass jelly is was goopy, clumpy and disgusting. All the food we had there so far seem microwaved and not fresh. Also I don't like how their complimentary popcorn is there some days and same days not.. even though I live walking distance I steer clear