What did I do before Ocado? And why doesn't everyone use it?
Ocado is efficient and reliable - it's a very rare event when my delivery doesn't arrive in the designated hour slot, and then I'm given warning. Delivery men (for they almost inevitably are - why??) are polite and helpful.
Friends always ask if I don't mind having someone else choose my fruit and veg, but I find the quality excellent and I couldn't do better if I selected things myself. The range of products increases constantly, so it's unusual not to find what I'm looking for.
I would recommend them highly.