I prefer self-checkout and use it pretty much every time I see an opportunity to do so. Living in the Netherlands, somehow self-checkout in Dutch supermarkets is very different from the ones I encounter in France or UK. Every time in France or UK I have issues with it primarily because the self-checkout tills have a very cumbersome and poorly working area where I have to put the checked products. Either they're doing a weight check or something, but it just doesn't work 75% of the time, which is extremely frustrating. Dutch supermarkets went with cheaper tills without this weight-check tech, and it just works every time.