Dunkin' - O'Fallon

I had a friend tell me, I must try their ice coffee. They were not wrong. OMG the ice coffee was absolute heaven!!! I added cake batter sweetener and whole milk. I'm in love!!! I also got a bacon, egg, and cheese bagel. It was ok, kinda bland in taste. I will definitely be back for more ice coffee!!!

Staff were very fast and efficient. Donuts and avocado toast were exceptional. Iced frozen coffee drink was delicious..

Usually pretty quick with my online app orders and typically correct. They were out of my drink flavor but I switched when I got in line and only waited a few extra minutes.

Very rude and yelled at me when they messed up my order and had attitude with me for no reason. this was on Wednesday at 6:56 am NOT ACCEPTABLE!!!

Without a doubt the slowest drive thru coffee shop around. I’ve been in line for 30 minutes and write this review while in line. They are only taking one drive thru order at a time and then waiting about 5-8 minutes before taking another order. Absolutely ridiculous. I would give ZERO stars if I could. Don’t come here if you’re in a hurry. Headed to scooters now!