As a fellow Canadian that can't get his hand on Krispy Kreme all the time, I was excited to find out that they had one near the Golden Nugget where we were staying.
The service was good, and we were greeted within 5 seconds of entering the door. I dealt with a variety of staff and overall most of them were friendly.
I went back here three times, I wouldn't recommend getting the donuts here after 9pm as the donuts were starting to get dry. But if you go earlier on in the day, they are amazingly mouth watering.
The bonus is this, if you need Wi-fi for free. This place has got it. That's the only reason why I was able to check in.