Great idea and I'm enjoying it so far. Chores and errands are much more fun. My one gripe so far is that it seems like most items/quests cost gems, which are pay to play. I'm afraid i'll pretty quickly run out of free items/quests to strive for and then the app will lose its effectiveness. It'd be helpful if their were other ways to unlock gems outside of paying for them, like reaching extra high levels of productivity/habit building, etc.