The owners of a restaurant employing 4 robot servers reveal the drawbacks – and explain why humans are crucial

Amy, Will, and Josh work in a restaurant. They bring food to tables, interact with guests, and from time to time, they roll away to replenish their batteries.

The main attraction at Robotazia, a restaurant in Milton Keynes, UK, is the four robots.

The owners of Robotazia, Joy Gittens and Mark Swannell, told Insider that they wouldn't replace their human server with machines because of the drawbacks.

They run away from guests.

The signals from the metal are reflected off by the robots and they roll away from the guests.

Amy.

Kate Duffy is an Insider.

Gittens said that people will not be allowed to take their food off the tray when they go to the table for delivery.

Gittens and Swannell said they have to check if customers are wearing lots of jewelry in order for them to get the best experience.

They chat too much.

Amy can respond to customers' questions with an interactive function. She would stay there having conversations, so we turned that off.

Swannell said that the robots spoke in an odd sort of English which didn't make sense.

Amy spoke with a robotic American accent, but she didn't ask any questions or respond to my questions. She said "bon appetit" before heading back to her base.

They stop working when they're hungry.

The robots make a quick exit when they need to replenish their batteries.

The girl is named Ella.

Kate Duffy is an Insider.

Gittens said that if they feel that their charge is going low, they need to replenish. She said that they put themselves at their charging stations no matter what they are doing.

Gittens said that Amy did this on one of the busiest Saturdays. Gittens told guests that she knows when she needs a refill.

The robots can show certain emotions. A tear appears on the robot's face if a customer gets too close.

They can't do basic tasks.

The robots can deliver food but can't clear tables. They can't check if a person is old enough to drink.

They can't change their batteries. Four humans are used to keep the robot in working order.

Swannell said that the robots are more expensive than humans. This is due to maintenance. Swannell fixes the robots on Tuesday.

They are not human.

Swannell and Gittens value their human server. The website says that people are at the core of the business.

Human engagement is a wonderful thing to have. It's the warmth of that person asking how you are. Thank you for coming to Robotazia.