Lindt has released several chocolate bars filled with mousse, this one is their Dark version (there is also Hazelnut and Milk). The mousse looks very tasty both in the pictures and in the commercials I've seen, a fair mound of it, but there isn't that much in this bar. I don't like the ingredient listing much, sugar and hydrogenated vegetable oil, but there are hazelnuts within. The cacao content, while there is no indication of the actual amount, is likely at the minimum to make it Dark.
How does it taste? Fairly sweet, though the mousse does melt satisfyingly on the tongue. The dark chocolate is not so dark, and it's a fairly soft chocolate. Good if you like that kind of thing, but, for me, I'll give it a pass.