McDonalds provide high quality products, such as burgers, fries, drinks, muffins, etc, which are safe and reliable that it does what it is supposed to do, but not only does the quality of the products matter, the good value for money affects the business. E.g. buy one extra value meal and get one free with a food voucher that represents the offer only. They ensure that a high standard of the product is carried out at all times and they try to compete very competitively with other fast food businesses with their good value for money. Also a customer would know if the product is good value for money by checking in another food outlet like KFC for their services and products.
McDonalds also play a role especially into the goods being safe to use and being very reliable with provided instructions. This will benefit the customer's safety and hoping to be very reliable during the customer's use because its helps the business to increase it sales by keeping the existing customers and attracting new ones.
The products of McDonalds are safely packaged when it is required for the product, in order the customer does not have any problems or and negative feedbacks to McDonalds. E.g. hot coffee cups have plastic lids on top so it does not spill or burn on the customer. Also, McDonalds ensure to offer nutritional guide of the product clearly state what the product contains.
However, not only the high quality standards of food affects the business, the staff who are presently providing the service are entitled to establishes him or her self with their tone (the sound of the voice), manner (the level of maturity), language and body language well enough to satisfy the customer and to make them appreciated of feeling more welcomed and values...