I missed out last year so this year I made sure to get in to The Bull & Castle to try some. It was not for me I'm afraid. The aroma was all about the cloves with plenty of nutmeg. The taste? Well it tastes like Christmas. This is exactly the way you describe the Czech drink of Becherovka. I can no longer drink Becherovka after a rather stupid night where I downed the best part of a bottle of the stuff with a friend. I was sick for 3 days so anything that reminds me of it is not something I will enjoy.
So if you like your Christmas beers full of cloves etc then this is something to look out for.