Hennessy is to cognac what Smirnoff is to vodka, there are far, far better cognacs.
Look for the different grades - XO is the best one, apart from XXO but I’ve only seen that once
Special mention for Armagnac, you get some superb brands of that, all better than Hennessey
I once saw sweet n sour sauce in a French supermarket, “sauce aigre-doux”
I looked up aigre to see what it meant and right enough, it just means sour.
At that point it clicked that French for wine is “vin” so sour wine is vin aigre
Or vinegar