Coming back to the UK I’ve found their sandwiches (and the similar pre-packaged ones you get in most shops) to be a bit too heavy, especially on the carbs, and I felt I was eating much healthier when I was out in europe (and enjoying much more flavour). Mind, at least with Pret you have some alternatives that are no more expensive, and there’ll almost always be an Itsu near by for a much lighter sushi lunch.