Yo I just came from an event catered by these ppl. The naan was not warmed, the veggies were overcooked and the cream-based sauces were bland and lacking spice. Sorry, no good criticism for this culinary experience. Well, maybe one - they didn't screw up the rice.
Perhaps they do it better in smaller batches like at the restaurant. I'm open to trying it, though not unless someone else is paying.