Good concept but doesn't seem to work. I got a voucher in Nottingham. First order attempt wouldn't apply voucher. Tried a few more times later & app not working due to excessive demand. Refreshed the app again later and app stated delivery will be slow due to bad weather however weather fine. Tried live chat to ask a question but after more than 30mins waiting I gave up. My basket seemed expensive even with voucher as products aren't cheap and pay for delivery.