I've eaten other bars with very high cacao content, Lindt even has one they are selling at 99%. I think that 70% is a good cacao content, this one is at 90%. The ingredient listing is good, cocoa mass, fat-reduced cocoa, cocoa butter, sugar, natural bourbon vanilla bean (and no lecithin emulsifier).
How does it taste? Very chocolatey, maybe a little too chalky (as bars with this high cacao content tend to be). The chocolate was very dark in colour. Pretty good (my beautiful Bride enjoyed it), but the chalkiness prevents me ultimately from really enjoying it, and thus I likely won't buy this again.