Barriques is great for it's many functions. First of all, it is a good coffee shop to get work done in. The coffee and espresso are good as they use Alterra beans from Milwaukee, some of the best coffee that makes its way to Madison. The setting of the place allows studying to get done as there are plenty of outlets along the walls for computer users and some big tables and booth seating along one wall that are great for long study sessions.
The other thing Barriques does very well is wine. The Wall of 100 is a fabulous selection of wine all for under ten dollars. If you have more expensive tastes Barriques has that covered as well. They also have a decent selection of microbrews and spirits. Overall this is one of the better coffee shops in Madison and the wine is definitely a plus. Make it to one of their tastings if you can, they're pretty affordable and offer a good variety of solid wines.