This rating is for the jerk chicken sandwich, which stole my heart. For $4.85 (tax not included), you get tender, juicy chicken and optional house coleslaw on a homemade coconut bun (we bought a few, and they keep the same way fresh bread goes bad, which is ~4 days).
According to a few close friends, they also have great customer service: My friends who live in the area and frequent this place had them cater a recent event. Allwyn's had given my friend an extra platter of jerk chicken instead of another smaller item. Instead of asking for my friend to drive to their store to make the switch, they made the trek to their place in the recent ice storm and insisted that they keep the extra platter of chicken that was mistakenly given to them, and gave them their correct order on top of that.
Note that this place is definitely a takeout place, but service is quick and you won't be waiting for long.