The Rajdhani experience is extremely good in terms of service, punctuality, music, food quality and cleanliness. Apart from the Shatabdis, the Rajdhani is the only Indian regular service train which westerners can feel completely comfortable in. If they employed better looking and dressed staff, they could pass for a star hotel.
The fare is expensive compared to normal trains (around Rs.1300 for 3AC and Rs. 2000 for 2AC) but if one is looking for fast travel and comfort, it is well worth the money spent.