I have been to Samba quite a few times. The more I go, the less I like it.
I do enjoy the ambiance. It remind me of a place that you'd find in Portland. Lots of Hipsters, and people with their puppies and Macbooks. If you wanna be surrounded by people from the hipster scene, then this is your place.
I have had the tea and coffee, which are just okay. I usually go for the macaroons, but after you eat a certain amount they all start to taste the same.
If you're in the neighborhood and don't mind paying extra for coffee, go for it.