I've only gotten take out here twice and I would have to say that the food is good but waaayyy over priced for what you get.
The chicken tikki masala is great as well as the mutter paneer but the naan is soft and soggy!
At my most recent trip to Pittsburgh, I got the mutter paneer, an order of garlic naan and rasmalai and spent over $20!
Being that I am used to cheap (and good/tasty) indian food for half the price, I would have to say that I'd think twice to go back to Tamarind.
Portions are small (two incredibly small rasmali for $5?!) and flavor is OK- I would say I rather go to Udipi for classic food or Indian Garden for cheap flavor.
Not worth it in my opinion...