I bought one for $5.29.
The bread comes very lightly toasted here and feels a little bit like bread that's been sitting-to-dry; it's soft and moist enough inside though. There's not much of a rye flavor to it or much of a rye bread feel; probably because most people don't like a strong rye flavor and you need pretty fresh bread for a crusty, chewy loaf. That being said, Arby's marble rye works well as lightly sweet, soft sandwich bread.
The cheese provided that vague creamy taste that's indicative of most fast food cheese.
Overall, Arby's Rachel sandwich was pleasantly good. If you're looking for bold flavors, you're not going to find it here; but if you prefer lighter, mild tastes, it might be what you're looking for in a sandwich.
Nutritional Info - Arby's Turkey Rachel sandwich (322g)
Calories - 720 (from Fat - 290)
Fat - 33g (Saturated Fat - 7g)
Sodium - 1850mg
Carbs - 66g (Sugar - 11g)
Protein - 40g