Great Indian food loaded with spices and flavor. The interior is extremely casual--it's not exactly the place to go on a date, but for a casual get together with friends it works. The buffet option makes it worth the cost. Their carryout option is particularly useful, so you have the option to eat your food at home for potentially even less money than sitting down and eating (they weigh the carry out box by the pound instead of the regular flat fee for the buffet).
After having visited Ambar over the course of several years, I have never been disappointed. Vegetarian options may sometimes be lacking, but the meat is quite good. I highly recommend the red chicken and mushroom saag! I do, however, wish the interior looked more neat and organized with a cozier feel, which is why I am giving four stars instead of five. For what this place is--a restaurant on campus, designed to feed students tasty Indian food at an affordable price--it's worth a visit.