With so many great features, it is hard to choose just 1. So I will go with 4 that I have really been utilizing a lot lately:
1. What I love most is the profile stats page and ability to link to D/T, hidden month, or hidden date needs.
2. I love the badge gen. It creates a game within the game for me, and it allows me to set new and exciting goals for myself.
3. Challenge checkers and the challenge checker map. I recently started getting into challenge caches, and I love how I can pull up a map of them and see which ones I qualify for immediately in areas that I am going to be visiting or potentially visiting in the future. Also this helps me to build my to-do list so that I can complete more challenges down the road.
4. Discover trackables page! After an event, I really enjoy not having to log each trackable that I discovered individually. One screen, one message, and many trackables logged...Awesome!