Fast Food RestaurantRestaurantBreakfast RestaurantCoffee ShopBurger JointSandwich RestaurantMcDonald's
McDonald’s USA, LLC, serves a variety of menu options made with quality ingredients to millions of customers every day. Ninety-five percent of McDonald’s approximately 13,500 U.S. restaurants are owned and operated by independent business owners. For more information, visit www.mcdonalds.com, and follow us on social: X, Instagram, TikTok and Facebook.
I had a very disappointing and frustrating experience with this McDonald’s location.
I placed an order through the mobile app and even redeemed my reward points for it. However, when I arrived, the staff told me that their system did not show my order and refused to prepare my food. What made the situation worse was their extremely rude attitude. Even after I showed them the order record and payment deduction on my phone, they completely ignored me and offered no real help.
They kept asking me for the 4-digit code from the app, but I clearly explained that the McDonald’s app had just been updated and was having issues, so I could not open the detailed order page. Despite that, the app still showed that my payment had been deducted. Instead of trying to understand or solve the issue, they simply dismissed me.
This experience made me feel disrespected and poorly treated as a customer. Although the amount of money was not much, that is not the point. After all of this happened, I ended up placing another order again just to get my food, which I should never have had to do.
This kind of situation should not happen. Customers should not be blamed for app or system errors, and staff should treat people with basic respect and professionalism.
MB
Manuel Bonilla
Apr 1, 2026
3.0
Saw the clown !
MM
MLopez
Mar 16, 2026
1.0
Ice cream machine is always broken. You’d think with all the money McDonalds makes that they can fix their broken machines. Wouldn’t doubt employees are to lazy to work the machine cuz they need to clean it at the end of the day
DJ
Diane C (Justmyopinion)
Mar 16, 2026
1.0
Management: Please don't send me a messagè that mentions contacting you so can can resolve the issue. We all know nothing changes and you want it to appears as something will actually change. I know it's my fault because I chose this establishment, but I find myself thinking they can't always fail. Again, I was wrong!
Food: Ordered Big Mac Combo (no shred), side of sauce, and fresh fries, and coke.
Food: Received Big Mac Combo with shred, no sauce on or on the side, fresh fries no salt, and a coke that was almost pure syrup. One thing that I can say about McDonald's they are consistent in serving crappy and not to order food. Go to Denny's for a fresh hot burger to order for $9.99. Break the emotional McDonald's eating.
SF
summer fu
Feb 22, 2026
1.0
I went through the drive-thru around 3:10 PM on 2/22.
I ordered two Happy Meals, one McCrispy medium combo, and a 10-piece Chicken McNuggets.
When I got home, I found a long hair inside one of my son's Happy Meal chicken nuggets.
This is extremely gross and unacceptable, especially since it was for my child.
I did not take the receipt, but I paid at the drive-thru around that time.
Please advise how this can be resolved.
What are McDonald's delivery hours in Diamond Bar, CA?
Delivery is available from 5:00 AM to 11:50 PM Monday through Thursday and Sunday, from 5:00 AM Friday to 3:59 AM Saturday, and all day Saturday from 4:00 AM to 3:59 AM Sunday.
Does this McDonald's location have a drive-through, and when is it open?
Yes, this McDonald's has a drive-through open 24 hours a day, seven days a week.
What types of payment does McDonald's in Diamond Bar accept?
They accept American Express, Android Pay, Apple Pay, Cash, Discover, Mastercard, and Visa.
What services are available at this McDonald's?
Services include drive-thru, gift cards, McDelivery, mobile offers, mobile ordering, and WiFi.
Where is this McDonald's located?
It is located at 205 South Diamond Bar Blvd, Diamond Bar, CA 91765, USA.
Can I order McDonald's delivery through a mobile app?
Yes, you can order delivery through the McDonald's App available on iOS and Android, or use the online ordering link.
What nearby food options can I find close to McDonald's at 205 South Diamond Bar Blvd?
Nearby food options include Carl's Jr., The Coffee Bean & Tea Leaf, Diamond Palace Chinese Seafood Restaurant, Sizzler Restaurants, Chipotle Mexican Grill, and Brown Rice Thai Restaurant.
Are there any beauty or wellness services near this McDonald's?
Yes, nearby options include Modified Beauty, Illumination Teeth Whitening, Phenix Salon Suites, Chantik Skin and Permanent Makeup, Lashes and brows beauty, Rachel's Hair Affair, Safe Haven Skin Care, and Browfessional Beauty.
What convenience stores and gas stations are near this McDonald's for quick stops?
Nearby places include Shell, 7-Eleven, Chevron, ExtraMile, and H&S Energy - Extra Mile gas stations and convenience stores.
Is there WiFi available at this McDonald's?
Yes, WiFi service is available at this McDonald's location.
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