A must try, in my opinion. It's delicious, only that it lacks of some complexity. It probably depends very much on the brandy used. I went form Xerez Gran Duque de Alba, which is good, but quite sweet. Maybe I should try with a better, drier one.
Pretty nice Manhattan variation, suited for wet palates like mine. Should be considered an anytime cocktail, as it can work both as an apéritif and digestif. Works for grape brandy, not just Cognac based on my experience.