I picked one up for $5.69.
Beyond the typical smoky and sweet notes, the sauce was really tangy. It was a little jarring against the other more mild ingredients and felt unnecessary given the already sweet and smoky pork.
The cheese arrived nicely melted with a subtle smoked flavor. It's hard to pick out unless you're nibbling on just the cheese. The mayo was similarly easy to miss.
The bun was soft and held together well.
Nutritional Info - Arby's Smokehouse Pork Belly Sandwich (248g)
Calories - 860 (from Fat - 550)
Fat - 61g (Saturated Fat - 23g)
Sodium - 1540mg
Carbs - 49g (Sugar - 13g)
Protein - 29g