Amazon Go - A revolutionary way to shop

Amazon Go is an a new service provided by Amazon. This is a type of store where you don't need any cashiers (or a cashier). The customer enters in the shop and sensors recognize them, so the shopper takes whatever they want and leaves the store. The same store reads all the prices of the products taken by the customer; therefore So they don't need wait in line, which is more practical and an easier way to shop. Amazon is also studying to sell the software to retailers worldwide.
This alternative way to shop can compete with online shopping, which increases year by year. In my point of view, for the customer this is great but when you think about the economic impact, as it could decrease jobs. 
Of course technology is welcome when it improves our lives, but nothing is perfect. We also have to evaluate how these technologies have impacted our routine. We need ask: Is it necessary? Are there advantages? I believe everything in our lives must be balanced.