Big Mac is a value for money place. Good and youthful ambience, lots of choice and great prices make for a cool experience. Go there if you want to pick a snack, dessert or tea and coffee. Avoid peak times like weekends and evenings or be ready for parking problems. What I like about hem is there concern for quality, hygience cleanliness and customer focus.
The counter people always have a big smile, staff is courteous and helpful. Whats best is consistent attitude and quality. Late breafast or early dinner - make it to Mac. Food is healthy may not be too tasty but definitely nutritous.