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.
Numerous reviews highlighted poor customer service, with staff being rude, unhelpful, and dismissive towards customers.
Order Accuracy
Many customers reported issues with incorrect orders, missing items, and being charged for items they did not receive.
Cleanliness
Several reviews mentioned that the dining area and restrooms were not clean, contributing to an uncomfortable dining experience.
Food Quality
While some customers enjoyed the food, there were complaints about cold food and inadequate portion sizes, particularly fries.
KK
K1LlinGDA1LY
Dec 29, 2025
1.0
Worst customer service some girl name Alondra help me out has no respect and really rude to me and my family . She was ignoring me in the drive thru window when I ask her for ranch and buffalo. Please don’t come here at all stay away from this mc Donald’s . If I could give 0 stars I will
SA
Soheyl Alobaidi
Dec 24, 2025
1.0
terrible service, i ordered my breakfast food before 10:30 and got in line and told them my code before 10:30 and the line was long so by the time i got to the window it was past 10:30 and they refused to give me the food… They didnt run out of breakfast stuff just refused to give it, useless people
CC
Christian G. Corona
Dec 23, 2025
1.0
I’m really disappointed with this McDonald’s on Mountain Ave in Ontario, CA. I placed a $50+ order and was shocked that I was asked to pay extra for additional sauce. Charging for sauce on such a large order feels extremely petty and out of touch with basic customer service. (A few sauces isn’t gonna cover all that food)
On top of that, the dine-in area is noticeably dirty and the tables are not cleaned, floors messy, and an overall uncomfortable environment. Because of this, a lot of customers clearly avoid eating or ordering inside unless they absolutely have to, which pushes more people into the drive-thru and makes the lines even longer than they already are.
This location seriously needs better cleanliness standards and more reasonable customer service. Until that improves, I’d recommend avoiding this McDonald’s if you have other nearby options.
SB
Stephanie Bobik
Dec 17, 2025
1.0
I have always loved going to the old classic Mc Donald’s and I was so exited when they remodeled it but wow was I surprised the service at this Mc Donald’s is they are extremely rude they need all new staff not one person that has helped me has been kind everyone one that works here looks like their dog died and the bad part about it is you cant get any refills on your drinks at all no matter what so if your going to go to Mc Donald’s I would advise you to pick a different one this Mc Donald’s deserves a one star rating I would actually give them a zero, but it only goes to a one star rating even my seven-year-old daughter says that this McDonald’s deserves a zero star rating. That’s pretty bad when a seven-year-old says that. my family and I will not be returning to this McDonald’s.
DK
Deedee Kees
Dec 12, 2025
4.0
You get buzzed into the restroom now. Guess it's been that long since I been inside!
Where can I order food online for delivery or pickup from this McDonald's?
You can order online at https://mcdonalds.order.online/business/-5579 or via the McDonald's App available on Apple App Store and Google Play.
What nearby places can I visit before or after dining at this McDonald's?
You can visit Mountain Avenue Car Wash for a vehicle clean-up, Alberto's Mexican Food for additional dining options, or Ontario Mountain Ave park for some outdoor relaxation.
Are there any convenient automotive services close to McDonald's?
Yes, nearby services include ARCO and Speedway Express gas stations, O'Reilly Auto Parts, and Real Hydraulics & Auto Accessories for auto customization.
What medical facilities are near this McDonald's in Ontario?
Nearby medical facilities include Healthpointe, The Functional Restoration Program at Healthpointe, Kaiser Permanente Health Care, and doctors specializing in orthopedics, neurology, physical therapy, and pain management.
What is the price range and type of food served at this McDonald's location?
McDonald's offers affordable fast food with a price range categorized as 'ONE', including burgers, sandwiches, coffee, breakfast items, and frozen desserts.