The lunch buffet is a great deal, but the food isn't super amazing so I guess it's a trade off. I was pretty disappointed there was no saag and the chicken tiki masala was sub par. For me the highlights were the chana masala, samosas, tandoori chicken, and the curried veggies.
If you want a filling, decent lunch for a great price, then go here. But if you want top Indian food in the Pittsburgh area I would recommend Mintt of Tamarind.