Mercurys Coffee Co.

I’ve been here three times, every time I was met with dismissive attitudes and drinks being made wrong and then more attitude from the girl who made the drink wrong and then had to remake. Short haired female is very dismissive, the line girls taking orders were nice and the men always seem to be as well. It’s the people on bar who have no customer service skills, makes me regret tipping before I had even gotten to the window.

Service is fantastic, every single employee is happy and makes you feel truly welcome, God bless them. (Seems to be a trend in this area, I'm from NY and it's... different) Delicious sandwich and authentic coffee but the chocolate eggs took the cake (pardon the semi-pun) for me, so much so I bought extras. I saw reviews about the place being extremely busy but I was out with my order in less than 5 minutes, possibly because of the corona hit.

I used to enjoy coming here for a cinnamon roll and coffee, but for some reason they stopped carrying cinnamon rolls. The staff apologizes, but doesn't know when they'll have them back in. This is the third time I've gotten that answer, so I just left without ordering anything. Won't be coming back here, since Thruline is just as close, and actually carries what I'm looking for.

I do love their espresso chocolate banana shake or smoothie, minus the coffee, and their customer is awesome! I give then a 4 star rating because I don't buy anything else, and I only go there once in a while, not often.

This coffee business needs to do something about their customer traffic. Because it’s a drive-thru only system, it’s easy to get a pile up on cars hanging out in the main road. It only takes about 6 vehicles to pile things up. People can’t get by unless they had to find an opening to drive in the opposite lane. It’s incredibly annoying and shouldn’t be allowed. Make these lazy people park and get out of their cars and walk up to a window to order their foo foo drinks.

I love mercurys drinks. I’ve been going to the one in kirkland for so long, however i will not be returning there. i have so many bad experience with their staff and service. I always ask for extra whip, i am even willing to PAY extra if i have to. Every time i ask i always get a laugh or an annoyed response and they give me less than the regular amount. They even convinced me to buy a rewards card and didn’t tell me to go online and set it up. they just sold it to me without any instructions and i’ve been swiping it for the past 10/15 times i went and they couldn’t have done the bare minimum and told me that i wasn’t collecting any rewards because they didn’t sign me up. The location in woodinville told me so after swiping my card ONCE there. I will not be returning to the one in kirkland after feeling like i ask for too much every time when in reality i’m asking for extra whip that’s ALL

One of my fave coffee shops. They use 100% organic coffee. I’ve had their lattes and mochas which are made very well. It’s a drive thru but they have people who will take your order while you’re waiting in line.

The staff are great. Friendly and help out when you don't know what to get.
Even if the coffee is average, the staff changes all that.

Nice service and always freshly ground coffee till 11 pm at night. Only drive thru

Currently consuming my first breakfast sandwich and latte from mercury while waiting for Cosco to open
Thought I would check it out based on recent review
Delicious hot hot but not burnt
I ordered a flat white and the order guy was like "blah blah coffee language blah blah it is charged as a latte but we will get as close as we can to a flat white "
Super friendly and he was right tasted like a flat white
Breakfast sandwich was sausage egg and cheese on some sort of croissant roll
Best coffee I've had in Seattle so far so