Update: this place is addictively good. I have become an undeniable fan of the iron goddess... Very delicious and not overwhelming. I still wish it was cheaper though!
This place is nice: sleek interior decor, trinkets and plants scattered around the shop, very cool atmosphere. But for about $5.50 a drink (regular size, with 10% off), I can't imagine coming here unless someone's treating me!
I had the Iron Goddess with grass jelly, 50% sugar and less ice, it tasted pretty good. The tea was rich and tasted like it was brewed from real tea leaves. So props to that, but it's not too special. I think I could replicate the drink at home, actually.
Oh well, it's worth a try if you're willing to splurge!