Cartel Coffee Lab has pretty selective hours, but if you have the chance to stop in, you definitely should.
Since the place is only open on weekdays 7am-4pm, it's pretty clear that they are catering to young professionals. My friend and I were pretty much the only people - aside from the baristas - not in business attire.
The interior is very industrial/hipster-esque. Rusty bicycles and taxidermy mounted to the walls, metal and concrete furniture, and minimalist artwork made from recycled bicycle rims...they all scream hipster!
But aside from that, they had one of the most delicious chai lattes I've ever had. I ordered a 16 oz soy cold chai ($5.50) and it was simply scrumptious. I am glad that I got the bigger size. Sweet, but not overly so and spicy, yet not overly so. A definite must try in the downtown area - if it's open when you get there, that is.