American here (work in downtown Chicago), I used to get Pret several times a week as one of their stores was right next door to my office. They have delicious sandwiches, bakery items, and fruit cups, but it's very expensive - a croissant and a breakfast sandwich ran close to $10.
It's a great place if you want to eat healthy and have a short lunch time, but there are better options to deliver from if you're WFH.