Pros: Delicious desserts (cakes/pastries), coffee, tea, etc. Cookies, depending on what you get, are good but not the best I've had.
Cons: Always pretty packed (and hard to get around inside due to space), and the number system with lots of people all around makes me a bit anxious. However, once you've been here a few times, you get used to it. I just make sure to look at all of the desserts and so that I am ready to choose when called.