This location is now on the Gong Cha website (H/T Upper West Sider!) ... marking the ninth outpost in Manhattan for the global franchise founded in 2006 in Kaohsiung, Taiwan.
This block of St. Mark's has seen a variety of bubble tea come and go through the recent years... some still in business (Kung Fu Tea right across the street).... and some not (Mi Tea).
This storefront (the one on the left) has been vacant since Lab -320° closed in late 2016 after six months of selling ice cream. The previous longtime tenant here, The Sock Man, closed in January 2016 after a reported rent hike via (now former) landlord Raphael Toledano. Sock Man owner Marty Rosen later opened a new location at 99 1/2 St. Mark's Place ... where he remains today.
Photo by Steven