How does panera bread attract customers? why do customers not mind paying more for panera bread's food?

I think it's that their commercials attact people with their food and the famous people using the food to hype it

Panera Bread is an American Bakery and cafe store which serves the bakery items, fast food items, and casual restaurant foods to its customers. It has more than two thousand branches in America and Canada. The good, clean warm food attracts thousands of customers to its different branches on daily basis. The environment is so welcoming and pleasant that people are more attracted towards them. Besides these things, they also have a very competitive marketing strategies like making big budget commercials, displaying hoardings, billboards and the use of celebrities to attract the vast pool of people to their stores. Due to such factors, people are usually ready to pay more for the Panera bread's food. The itself is no doubt delicious, plus the environment of the cafe makes it more attractive for the customers.