Amazon has opened its first Amazon Go store in Seattle. This is a grocery store without checkouts, with cameras and sensors keeping track of what you buy.

YouTuber Joseph Choi, who is based in Seattle, decided to check out the first Amazon Go store, and this video shows what he experienced.

First of all, there’s a long line to actually get into the store, which is ironic. However, once he’s in Choi finds the Amazon Go store works like a dream.

Because he’s pre-programmed to pay for things before leaving a shop, Choi felt like he had just stolen from the store. Which is interesting.