Yercaud Experience: nice place, not much to roam around, but just to relax its a good place, you dont need much money to enjoy your days here, it can be affordable by a lot of people, overall the destination is a place for the one who just wants to relax in a quiet and nice weather.
Food, sight-seeing and shopping: waterfalls, dont forget to taste the bhajji and coffee
Activities & things to do: hiking and just relaxing
Travel tips, How to reach, travel warnings etc: best to reach by bus as it is non expensive, take care while you select the hotels.