First, it's important to realize that Darjeeling is basically a one horse town--and there are few options for upscale travellers--most visitors are probably non-demanding trekkers.
The New Elgin has charm--in a decaying raj sort of way--(this part of the country is prone to generator blackouts--be sure to bring a flashlight)--but it also has a very unhappy staff--and meals consisting of limp British food served in silver chafing dishes swimming in grease. I am hesitant to understand why--unless the hotel has discovered that Europeans prefer even the lowest denominator English food to the best of local cuisine.