I'm not going to write this caption by saying all the Domaine Bertrand wines are immensely different; They're not; but having lived and worked in the region of Beaujolais I can say that these are exemplary examples of what Grande Cru Beaujolais are about.
The "Pisse" Vineyard in the Brouilly appellation is known for producing wines of finesse. When produced from old vines, which is what "vieille vignes" means, this is even more exemplified.