About 13 miles of conveyor belts run through the roughly 855,000 square foot Amazon warehouse on Staten Island's west shore.

The facility—opened with little fanfare back in October—is the online retailer's first major New York City distribution center, and it's booming.

Employee Corey Schultz says, "You get in a rhythm, you try and like beat the person across from you— something like that—get a nice little rhythm going."

At the facility, about 2,000 employees work 10-hour shifts, four days a week, stowing, sorting, picking and packing some of the one million products available for sale and delivery.

The process is guided by computers that tell so-called pickers exactly where to find the products they're looking for.

And then there are the robots—powered by artificial intelligence—toting shelves of goods around a robot-only area, far away from humans.

If a so-called AR, or Amazon Robot, breaks down or an object falls to the ground, workers like Deashani Bernard can enter the space and make things right.

"We get to see what's going on with the floor. So if there's an obstruction, it will pop up, so we go for that. We know where it is going to be exactly," Bernard says.

Work at the facility is nearly a 24/7 operation.  And while the process relies heavily on robots, it's the people who do the bulk of the work.

But some of the employees have complained about their working conditions, citing long hours and safety concerns as reason to unionize.

But the road ahead will not be easy. No Amazon facility in the country has unionized.

Rachael Lighty, an Amazon spokeswoman, tells NY1, "We respect their rights to join or not join a union. But the truth is that we're already offering what unions are asking for and even more. These jobs are great jobs with great benefits."

Experts say if Amazon workers can't organize in the most unionized state in the country, they may not be able to organize anywhere.

And while Amazon's bid to build a headquarters in Long Island City flopped, the company has plans for similar distribution centers in Brooklyn and the Bronx, built on the Staten Island model.

For now, a combination of humans and robots work in tandem to make sure that package arrives on time.