Darjeeling Experience: A very nice place and one must go, especially after marraige. journey from Gangtok to darjelling is dream come true.
Food, sight-seeing and shopping: Very nice sight seeing ..tour operators were very nice and cordial
Activities & things to do: Enjoy the beauty and go for shopping.
Travel tips, How to reach, travel warnings etc: I went in Rainy season in month of July . But i liked in rainy season also beacuse you are surrounded by lush green features.
so go any time ..there was no problem.