Ocado are the best! I've tried several supermarket home delivery services, but I've stuck with Ocado as they have proved to be the most reliable delivering my orders on time, and with the products I've ordered and hardly any substitutions or missing items. I pay to have an annual delivery pass, which although it's a lot to pay at one time, works out at good value spread over the year, especially in weeks where I have more than 1 delivery. I've also found the fresh produce is fresher than when I've used other delivery companies, and what I like most is being able to have Waitrose products delivered straight to me without having to go into town and pay parking charges.