Luckin Coffee opened its first US location, offering pineapple and coconut coffees. But customers were lured in by something other than flavors.

Luckin Coffee, the largest coffee chain in China, has opened a pair of locations in New York. And that could put an added emphasis on Starbucks’ ongoing turnaround plans, as Luckin has grown to outnumber that company in China, with 22,000 locations.