McDonald's
$ • Fast Food, Burgers, Coffee ShopsAbout McDonald's
Customers' Favorites
Double Quarter Pounder with Cheese
Mcflurry with Oreo Cookies
Quarter Pounder Hamburger
Filet O Fish Sandwich
World Famous Fries
Chicken Mcnuggets
Strawberry Sundae
Sausage Mcmuffin
Chicken Sandwich
Sausage Burrito
McDonald's Reviews
256 ratings
Share your opinion about McDonald's
needed a fast and light dinner. drive thru was fast , friendly and easy .
Unlike other McDonald’s locations, this location always have good service and always pick up the phone for assistance. I had few incidents where they ran out of a drink and charged incorrectly, but they’ll take care of it right away. Highly recommended this Diamond Bar location.
Clean place. Great service. Order never messed up in 4 years! Free refills unlike some other McDonald's!
Hours
| Monday | Open 24 hours |
| Tuesday | Open 24 hours |
| Wednesday | Open 24 hours |
| Thursday | Open 24 hours |
| Friday | Open 24 hours |
| Saturday | Open 24 hours |
| Sunday | Open 24 hours |
McDonald's is a convenient and familiar spot for a quick bite. The staff are always friendly, and the food is consistently good, with the quarter pounder with cheese being a popular choice. While there have been some minor issues with orders, the staff work to resolve them efficiently. Sometimes, orders containing fries or drinks may not match the request, such as salted fries when no salt is chosen or sweetened tea instead of unsweetened. The curbside pickup through the app is usually smooth and accurate, with food often arriving fresh, although occasionally there are delays or app malfunctions. The bathrooms could use some attention to cleanliness and maintenance, but overall, the staff are polite and helpful. Despite these minor issues, McDonald's remains a reliable option for a quick and satisfying meal.