I bought a 12-oz Tall for $4.25.
I'd tried the Frappuccino version already but figured since it's a fall beverage, it was meant to be drunk hot.
Starbucks describes the Toasted Graham Latte as a more "coffee-forward" drink, but I wouldn't say it's more noticeably coffee-flavored than their other flavored espresso drinks. It's definitely more graham-forward than anything. There's a nice honey-graham taste to it and a hint of coffee that I think is meant to add the "toasted" quality. Despite the purported sweet cream quality of the syrup, the drink didn't feel any creamier than other latte drinks.
Overall, Starbucks' Toasted Graham Latte was nice enough but I can't help but think they might have been better off just doing a hot version of the S'mores Frappuccino offered earlier this year.