SHAKE SHACK OPENS IN UES

By [Alice Robb] The long-awaited Upper East Side Shake Shack opened Wednesday, Aug. 4. Now, customers just have to wait in that long line. The popular burger chain restaurant unveiled its new location on East 86th Street between Lexington and Third avenues two days earlier than planned; the official opening is Aug. 6. Like Shake Shacks around the city, the line stretched onto the sidewalk. â??It"s worth the wait, said a customer at the end of the line. Upper East Side resident Lisa Liberatore has frequented the Upper West Side Shake Shack for years. â??This is better than another bank, Liberatore said. As for the notoriously long lines? â??I"m used to it, she said. The indoor restaurant seats 65, with room for another 70 in the adjacent outdoor seating area. This is Shake Shack"s fifth location in the city and its seventh nation-wide. The restaurant occupies a space formerly used by a silk shop and a skateboard shop. Another Upper East Side resident, Lisa Spector, was a first-time customer. â??I think it"s exciting, she said of the new Shake Shack in her neighborhood. â??I hear people rave about it.