There must be two supermarket threads ahem, as I clearly remember saying I miss Safeway and Presto. Now I like certain things from all of them: Waitrose is just a much calmer shopping experience, no screaming kids you get in Tesco especially and if there was one near me I'd use it more. On posh nosh they are good BUT overpriced and their bread falls apart after a day.
Sainburys have the pleasant experience and quality food combo nailed imo. They've grabbed the second tier of food shopping behind the clearly higher priced luxury shops M&S and Waitrose.
Lidl just makes me laugh, it's like stepping into a 1970s independent supermarket before the big hypermarket craze started. We had one near us and even then they had a better range than Lidl and someone was always on the till.