I bought a 12-oz Tall for $4.25.
Like Starbucks' pumpkin fall drink, the cinnamon in the Chile Mocha gives a similar spiced feeling. Beyond that it differed quite a bit.
The coffee seemed more prevalent here and the sweetness level is a lot more moderate and less dessert-like. The cocoa gives it a mild chocolaty accent. Compared to your traditional Mexican Hot Chocolate, it's not as rich nor spiced but remained enjoyable.
Overall, Starbucks Chile Mocha makes for an excellent hot drink on a cold day. If you find their other fall offerings to be too indulgent, this one makes a more subtle play for your autumnal spending.
Nutritional Info - Starbucks Tall Chili Mocha with 2% Milk (12 fl oz)
Calories - 270 (from Fat - 110)
Fat - 12g (Saturated Fat - 7g)
Sodium - 140mg
Carbs - 32g (Sugar - 29g)
Protein - 19g
Caffeine - 80mg