Used Random last night for cruise today, very simple to set up and use. Tested, submitted the photo of the test cassette. Got certificate back within 1hour. Collected test kit from local shop and was the cheapest solution I could find. Would definitely recommend and will use again. As I am a belt and braces type of guy I also had test kits available from Prenetics just to have a plan B. We don't e ven need to test as on one of the Iona non-test cruises, but I just wanted to know I was covered just increase they changed their minds with the current increase in cases we are seeing.