Agra Experience: The place is very good. There are lot of places to see, like Taj Mahal, Humayu Tomb, Fatehpur Sikri.
Food, sight-seeing and shopping: The food was excellent, if you want to taste the Vegetarian & Non-Vegetarian food, you will get the varieties with joyful taste.
If you want to do shopping you can buy the things in reasonable cost.
Activities & things to do: You can see the places near Tajmahal, Fatehpur sikri.
Travel tips, How to reach, travel warnings etc: From Delhi you can reach by bus, train, taxi.