Update to the post: Unfortunately, Leblon has now been closed.
I think Leblon is one of the places that best suit the boheme feel of the Asmalimescit area. It is an upscale restaurant that has an elegant decor that gives you a very intimate feel. Especially the brick style interior layout goes really well with the ambiance. The area is small but a well thought interior design makes it look more spacious than it really is. I should also add that Leblon is one of my favourite spots in this area especially to enjoy some nice wine with a cheese platter in a cold winter afternoon.
Coming to the food, the menu has many tasty options that I am sure you will also like. What I like in particular is the flexibility on cheese and charcuterie offerings. You can choose whatever you like from a wide variety of cheese and salami options and customize your platter. Very tasty indeed.. I should also add that the service staff is kind and polite.
In short, if you are in Asmali area and look for a warm place to have some quality time I think you will enjoy Leblon very much.
Note: The image was taken from the website of the restaurant.