This is my second update. As you can see by my check-ins and previous reviews i come here nearly every day for my morning coffee. I have reviewed fairly each time. Today, was absolutely the worst drive thru experience i think I've ever had period. I showed the cashier the Yelp coupon for a free donut with purchase of Large or X-Large coffee and she snidely says " Huh?? Whats that?? I don't know what that is, whatever" ok WOW!! I was just so taken back i didn't even bother to explain that i come here daily and i use one of these every time it is available. It was the principle of the thing and the rudeness at which she came at me with which prompted me to write this update. I have honestly given this place a fair shake- coming here daily despite the crappy reviews, giving them great reviews when they deserved it, but now- i'm done. I joined Yelp to honestly review businesses and help others learn about pros and cons of places as well. This is why today this location of Dunkin gets 1 Star- because of the bottom of the barrel, uneducated, uncaring and pathetic customer service I received. Dunkin, i know you're a chain and don't care one bit about my review, but i tell you, you should take a close look at this location. No one deserves a bad experience to start their morning off with. Anyone know any good coffee spots around N. LV? Im marking this one off.