RP93 Robert Parker's Wine Advocate:

One of the wines of the vintage is the Grenache-dominated 2013 Châteauneuf du Pape Cuvée Chaupin. Coming mostly from a cool terroir in the northeast corner of the appellation (just to the east of Beaucastel), this wine is vinified with a small portion of stems and aged mostly in foudre (one-third is in demi-muids). It has gorgeous Grenache flair in its black raspberry, garrigue, spring flower and licorice scented bouquet. 
 
This gives way to a medium to full-bodied, elegant, and layered 2013 that has more texture and sweet fruit than just about every other wine in the vintage. I'd drink it anytime over the coming 4-5 years, but it will have 10-15 years of overall longevity.