I absolutely loooooove samosas. So much that I make them at home cuz I crave them!
I would recommend trying the buffet first and trying the different dishes. Then you can get kind of an idea what you like or don't like. I think they also have a "beginner's platter" you could try.
I like the chicken masala, chicken tikka, saag/palak paneer, chicken vindaloo, aloo mutter and I think the REALLY spicy chicken we had was what they called "Chicken 65."
http://tazcuisine.com/