Oh, one of the biggest advantages of shopping at a large shopping mall is a chance to visit a variety of shops without having to spend a lot of time on going to different areas of the city. Another advantage is a chance to get both shopping and entertainment opportunities at a single location... Oh, and, of course, an opportunity to park a car thanks to vast parking areas… As far as the disadvantages are concerned, I'd lay emphasis on huge crowds of people, especially at weekends and on holidays, and the temptation to buy unnecessary things because of sales and special offers.