I must have gone on an off day based on all the reviews below.
We ordered a drip coffee, an espresso and a peanut butter chocolate chip cookie.
My coffee was really good and I got it in a timely fashion. The espresso took, no exaggeration, 20 min and we were the only people waiting for our coffee. There was no one ahead of us. The barista just didn't know how to either make it or use the machine. One of the patrons waiting after us had to make some suggestions.
The guy at cash had completely forgotten that we ordered a cookie and also which one. When we got it it was horrible. No taste at all, completely flavourless. Good thing Roselle is a few doors down. Threw out the one we got at Tandem and got one that actually tasted good there.