The 2100 Building Fare Start Cafe is a great place to have lunch or a latte...just not every day. The good news: they have a full espresso bar, freshly made soups that often turn out really well, a number of sandwiches that come with pickles and chips, and a large assortment of drinks for the non-coffee drinker. They are also a great cause: they train formerly homeless youth in barista and food service, so their staff are very friendly and fun, and your money is going to a good place.
Now the bad news. Their service is very, very slow (giving you time to catch up with friends!) and their drinks are inconsistent (as expected with baristas-in-training). Their food is often uninspiring, though it's always better than the any number of fast-food places in the area.
All in all, it's a great place that you must try, but it probably won't become a weekly haunt.