The Hotel City Star is an exceptional hotel. The breakfast is very good for a westerner, the staff are some of the friendliest I have encountered, WiFi is fast / able to stream video, the rooms clean and the water very hot.
The gym is a very nice addition and as soon as a staff member notices that you are using it, water and towels are provided.
Every evening there will be a knock at your door as a plate of cookies are delivered, phenomenal!
If you are to stay in Delhi this is a fine choice of hotel and is very well located just 15 minutes walk from the metro. There is also a McDonalds, Pizza Hut, Dominoes and supermarket just outside should you need them.