Gangtok Experience: Gangtok is the best destination I have ever visited in India for the reason that the city is very clean & people are honest and law followers, and it is because of the strict rules that the place is liked for. Infact the rules if imposed all over Indian tourist places then India will become the Worlds best destination for tourists and travellers.
Food, sight-seeing and shopping: Fook here is very tasty, especially the MOMOs ans the NON-VEG. Irish Inn Hotel served us its chcken delicacy in roasted category which had a taste of its own.
Activities & things to do: A real good place for the walkers,trekkers & for adventure, as there are all sorts of activities one can do(the outdoor ones) like para gliding, hiking, treking, rock climbing, snow skying.
Travel tips, How to reach, travel warnings etc: Best way to reach gangtok is to take train to New Jalpaiguri from major places in India & then by road to Gangtok that takes about 3 and half hours of travel if there is no road block or jam. Alternate is taking a Helicopter from Bagdogra / NJP to Gangtok.