Lightning-fast delivery services are taking cities like New York by storm. And Gorillas is trying to be the leader of the pack.

This week on the Modern Retail Podcast, Adam Wacenske, Gorillas' U.S. head of operations, spoke about the online grocery service's growth plans and strategy. Gorillas is a grocery delivery app that began in Europe, but is currently only available in New York. Its main value proposition is that it can give customers their items in the blink of an eye -- usually in less than 15 minutes.

Last year, it raised nearly $1 billion in funding, and only a month ago the German-based company announced plans to raise an additional $700 million. That's because competition is stiff. There are a bunch of other delivery apps out there -- from GoPuff to Jokr -- that offer similar services of stocking dark stores with products and having couriers at the ready to deliver them to customers' homes. Though Wacenske said that Gorillas is focused on giving the best possible experience and having the fullest assortment of groceries.

"From day one Gorillas has been focused on a full assortment," he said. "We've always had what was akin to a medium-sized grocery store."

Wacenske knows a thing or two about being part of a fast-growing startup. His last job was at WeWork, and he spoke about how his past experience lent itself to this current role. "There's a lot of similarities to WeWork," he said. Specifically: both companies focused on growing physical presences and making them more convenient for their customers.

Meanwhile, the beginning part of this year was difficult for some players in the fast delivery industry. Two companies, Fridge No More and Buyk both closed down U.S. operations in the course of a week. "It's super unfortunate," said Wacenske, adding that both companies' closures were "out of a lot of people's control."

While those companies certainly faced difficulties with growth, Wacenske is optimistic about the future -- both for Gorillas and the fast-delivery space. "This is a really young industry in the U.S.," he said. "I can't fully predict as to what's going to happen, but there's certainly going to be more space for more opportunities and for more than one company in the future."